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All questions of Sorting Materials into Groups for Class 6 Exam
Select odd from the following
- a)Spade
- b)Eraser
- c)Tawa
- d)Pressure cooker
Correct answer is option 'B'. Can you explain this answer?
Select odd from the following
a)
Spade
b)
Eraser
c)
Tawa
d)
Pressure cooker
|
Prachi Singh answered |
All the things belong to kitchen except eraser
Choose the opaque materials form the following- a)Thin sheet of plastic
- b)Glass container.
- c)Wooden door
- d)Clear water
Correct answer is 'C'. Can you explain this answer?
Choose the opaque materials form the following
a)
Thin sheet of plastic
b)
Glass container.
c)
Wooden door
d)
Clear water
|
Vikas Choudhury answered |
Wooden door is an opaque object as it has all the properties of one:
1. Opaque materials are those through which light cannot pass at all.
2. We cannot see through these objects. They can also be called not-see-through objects.
3. The color of this material depends on the light it absorbs.
4. An object on the other side of this material is not visible at all.
The state of matter which has a definite volume but no definite shape- a)Solid
- b)Liquid
- c)Gas
- d)Mixture
Correct answer is 'B'. Can you explain this answer?
The state of matter which has a definite volume but no definite shape
a)
Solid
b)
Liquid
c)
Gas
d)
Mixture
|
Rishika Basak answered |
The state of matter which has a definite volume but no definite shape is called as liquid.
Select the translucent materials from the following?- a)Glass tumbler
- b)Aluminium foil
- c)Muslin cloth
- d)Mirror
Correct answer is 'C'. Can you explain this answer?
Select the translucent materials from the following?
a)
Glass tumbler
b)
Aluminium foil
c)
Muslin cloth
d)
Mirror
|
Anjali Kapoor answered |
Muslin cloth is the example of translucent cloth while tericot is the example of opaque cloth material. Any material which will be completely transparent will not be used as cloth material.
Which one is not a transparent object?- a)Clean water
- b)Glass
- c)Thin sheet of plastic
- d)Muddy water
Correct answer is option 'D'. Can you explain this answer?
Which one is not a transparent object?
a)
Clean water
b)
Glass
c)
Thin sheet of plastic
d)
Muddy water
|
Charvi Sen answered |
The object through which light passes easily are called as transparent object. Clean glass, glass and thin sheet of plastic are transparent while muddy water is translucent.
Which pair of substance float in water
- a)Pin, oil drops
- b)Thermocol, chalk
- c)Plastic ball, feather
- d)Coin, rubber band
Correct answer is option 'C'. Can you explain this answer?
Which pair of substance float in water
a)
Pin, oil drops
b)
Thermocol, chalk
c)
Plastic ball, feather
d)
Coin, rubber band
|
Anjana Rane answered |
Those substances that have less density than water floats on water surface such as plastic ball and feather.
Perfume is a substance which is - a)Malleable
- b)Volatile
- c)Sublime
- d)Non-volatile
Correct answer is option 'B'. Can you explain this answer?
Perfume is a substance which is
a)
Malleable
b)
Volatile
c)
Sublime
d)
Non-volatile
|
Athul Chatterjee answered |
Volatility is a material quality which describes how readily a substance vaporizes.
All metals are ----------- of heat and electricity.- a)Insulator
- b)Semi-conductor
- c)Good conductor
- d)Bad conductor
Correct answer is option 'C'. Can you explain this answer?
All metals are ----------- of heat and electricity.
a)
Insulator
b)
Semi-conductor
c)
Good conductor
d)
Bad conductor
|
Kunal Mehta answered |
In metals, some of the electrons (often one per atom) are not stuck to individual atoms but flow freely among the atoms. Of course, that's why metals are such good conductors of electricity.
Which among the following materials are not lustrous- a)Silver
- b)Gold
- c)Diamond
- d)Wood
Correct answer is option 'D'. Can you explain this answer?
Which among the following materials are not lustrous
a)
Silver
b)
Gold
c)
Diamond
d)
Wood
|
Pritam Shah answered |
Those substances that have shining surface are called as lustrous substance. Diamond, gold and silver are lustrous
Chair, table and plough are made up of- a)Plastic
- b)Iron
- c)Wood
- d)Paper
Correct answer is option 'C'. Can you explain this answer?
Chair, table and plough are made up of
a)
Plastic
b)
Iron
c)
Wood
d)
Paper
|
|
Tushar Iyer answered |
Chair, table and plough are made up of wood obtained from plants.
Can you explain the answer of this question below:Which type of material is used to make wind screen of a car?
- A:
Transparent
- B:
Translucent
- C:
Opaque
- D:
Semi-transparent
The answer is A.
Which type of material is used to make wind screen of a car?
Transparent
Translucent
Opaque
Semi-transparent
|
|
Bijoy Goyal answered |
Material Used to Make Windscreen of a Car
The windscreen of a car is an essential component that protects the driver and passengers from wind, rain, dust, and other external elements. It is a transparent screen made of a special type of material that provides excellent visibility to the driver. The material used to make the windscreen of a car is:
Transparent
Transparent materials allow light to pass through them without scattering the light. The windscreen of a car is made of transparent materials such as glass, polycarbonate, or acrylic. The choice of material depends on the manufacturer's preference and the type of car. Glass is commonly used in high-end cars, while polycarbonate and acrylic are used in budget cars.
Glass
Glass is a brittle and transparent material made by melting silica with other materials. The glass used in car windscreens is tempered glass, which is heated and cooled rapidly to make it stronger and more durable. Tempered glass is resistant to impact and shattering, making it an ideal material for car windscreens.
Polycarbonate
Polycarbonate is a transparent and lightweight thermoplastic material that is commonly used in car windscreens. It is highly resistant to impact, shattering, and UV radiation, making it an excellent material for car windscreens. Polycarbonate is also more flexible than glass, making it less prone to cracking or breaking.
Acrylic
Acrylic is a transparent thermoplastic material that is commonly used in budget cars. It is less expensive than glass and polycarbonate, making it an affordable option for car windscreens. However, acrylic is less durable than glass and polycarbonate and is more prone to scratching and cracking.
Conclusion
In conclusion, the material used to make the windscreen of a car is transparent. Glass, polycarbonate, and acrylic are the most commonly used materials for car windscreens. The choice of material depends on the manufacturer's preference and the type of car.
The windscreen of a car is an essential component that protects the driver and passengers from wind, rain, dust, and other external elements. It is a transparent screen made of a special type of material that provides excellent visibility to the driver. The material used to make the windscreen of a car is:
Transparent
Transparent materials allow light to pass through them without scattering the light. The windscreen of a car is made of transparent materials such as glass, polycarbonate, or acrylic. The choice of material depends on the manufacturer's preference and the type of car. Glass is commonly used in high-end cars, while polycarbonate and acrylic are used in budget cars.
Glass
Glass is a brittle and transparent material made by melting silica with other materials. The glass used in car windscreens is tempered glass, which is heated and cooled rapidly to make it stronger and more durable. Tempered glass is resistant to impact and shattering, making it an ideal material for car windscreens.
Polycarbonate
Polycarbonate is a transparent and lightweight thermoplastic material that is commonly used in car windscreens. It is highly resistant to impact, shattering, and UV radiation, making it an excellent material for car windscreens. Polycarbonate is also more flexible than glass, making it less prone to cracking or breaking.
Acrylic
Acrylic is a transparent thermoplastic material that is commonly used in budget cars. It is less expensive than glass and polycarbonate, making it an affordable option for car windscreens. However, acrylic is less durable than glass and polycarbonate and is more prone to scratching and cracking.
Conclusion
In conclusion, the material used to make the windscreen of a car is transparent. Glass, polycarbonate, and acrylic are the most commonly used materials for car windscreens. The choice of material depends on the manufacturer's preference and the type of car.
Why do shopkeepers use transparent containers for biscuits, sweets, and other eatables?- a)To prevent air exposure
- b)To enhance the taste
- c)To easily display the items
- d)To keep the items fresh
Correct answer is option 'C'. Can you explain this answer?
Why do shopkeepers use transparent containers for biscuits, sweets, and other eatables?
a)
To prevent air exposure
b)
To enhance the taste
c)
To easily display the items
d)
To keep the items fresh
|
Vp Classes answered |
Shopkeepers use transparent containers for biscuits, sweets, and other eatables so that buyers can easily see them. This practice helps in showcasing the products to customers, allowing them to view the items clearly without the need to open the containers. It can attract customers and make the products more appealing.
Hardest known natural substance is- a)Mercury
- b)Wood
- c)Gold
- d)Diamond
Correct answer is option 'D'. Can you explain this answer?
Hardest known natural substance is
a)
Mercury
b)
Wood
c)
Gold
d)
Diamond
|
Rajeev Sen answered |
Diamond is the hardest naturally occurring substance found on Earth. But it is not the hardest substance. Wurtzite boron nitride (synthetic) and lonsdaleite (which comes from meteorites) are both harder.
Can you explain the answer of this question below:If a substance can be beaten into thin sheet, it is called
- A:
Brittle
- B:
Malleable
- C:
Good conductor
- D:
Ductile
The answer is B.
If a substance can be beaten into thin sheet, it is called
Brittle
Malleable
Good conductor
Ductile
|
Pooja Shah answered |
The property of metals by which they can be beaten into thin sheets is called malleability. Most metals are malleable. Gold and silver are the best malleable metals and can be hammered into very fine sheets or foils.
Which one will show a metallic lustre?- a)Any surface of a metal
- b)Freshly cut surface of a metal
- c)Freshly cut surface of non-metal
- d)Surfaces of all materials
Correct answer is option 'B'. Can you explain this answer?
Which one will show a metallic lustre?
a)
Any surface of a metal
b)
Freshly cut surface of a metal
c)
Freshly cut surface of non-metal
d)
Surfaces of all materials
|
|
Nishanth Iyer answered |
Metals when cut, their freshly cut surface has shining.
Which one is a combustible substance?- a)Ghee
- b)Solid carbon dioxide
- c)Liquid nitrogen
- d)Water
Correct answer is option 'A'. Can you explain this answer?
Which one is a combustible substance?
a)
Ghee
b)
Solid carbon dioxide
c)
Liquid nitrogen
d)
Water
|
Geetika Shah answered |
Those substances that burn easily are called combustible substance. Ghee is animal fat, which is combustible in nature.
Newspaper, a book, a copy, a diary are made up of- a)Leather
- b)Wood
- c)Plastic
- d)Paper
Correct answer is option 'D'. Can you explain this answer?
Newspaper, a book, a copy, a diary are made up of
a)
Leather
b)
Wood
c)
Plastic
d)
Paper
|
Poulomi Nair answered |
Newspaper, a book, a copy, a diary are made up of paper obtained from plants.
Non-metal which is good conductor of electricity is- a)Graphite
- b)Diamond
- c)Sulpher
- d)Nitrogen
Correct answer is option 'A'. Can you explain this answer?
Non-metal which is good conductor of electricity is
a)
Graphite
b)
Diamond
c)
Sulpher
d)
Nitrogen
|
|
Kunal Mehta answered |
Graphite
It displays properties of both metals, and nonmetals. However, like a metal, graphite is a very good conductor of electricity due to the mobility of the electrons in its outer valence shells.
The state of matter which has a definite volume but no definite shape- a)Solid
- b)Liquid
- c)Gas
- d)Mixture
Correct answer is option 'B'. Can you explain this answer?
The state of matter which has a definite volume but no definite shape
a)
Solid
b)
Liquid
c)
Gas
d)
Mixture
|
|
Janhavi Bajaj answered |
The state of matter which has a definite volume but no definite shape is called as liquid.
Which is lighter than water?- a)Stone
- b)Diamond
- c)Steel
- d)Petrol
Correct answer is option 'D'. Can you explain this answer?
Which is lighter than water?
a)
Stone
b)
Diamond
c)
Steel
d)
Petrol
|
|
Manasa Datta answered |
Petrol is lighter than water as it floats on water surface when mixed with water.
Which material property is crucial for distinguishing between wood and metals based on their appearance?- a)Hardness
- b)Malleability
- c)All of these
- d)Lustreous
Correct answer is option 'C'. Can you explain this answer?
Which material property is crucial for distinguishing between wood and metals based on their appearance?
a)
Hardness
b)
Malleability
c)
All of these
d)
Lustreous
|
|
Anastasia Orlova answered |
The crucial material property for distinguishing between wood and metal based on their appearance is **reflectivity** or **luster**.
1. **Reflectivity**: Metals generally have a higher reflectivity compared to wood. This means metals appear shinier and reflect light more uniformly, often resulting in a glossy or metallic sheen. In contrast, wood typically has a lower reflectivity, appearing more matte or with a subdued luster.
2. **Texture**: While not a material property per se, the texture of wood and metal can also be distinct. Wood often has a grainy texture that can be felt or seen, whereas metals are usually smoother or have a different surface texture depending on their finish (e.g., polished, brushed).
These visual characteristics are often the first indicators that allow us to differentiate between wood and metal based on their appearance alone.
1. **Reflectivity**: Metals generally have a higher reflectivity compared to wood. This means metals appear shinier and reflect light more uniformly, often resulting in a glossy or metallic sheen. In contrast, wood typically has a lower reflectivity, appearing more matte or with a subdued luster.
2. **Texture**: While not a material property per se, the texture of wood and metal can also be distinct. Wood often has a grainy texture that can be felt or seen, whereas metals are usually smoother or have a different surface texture depending on their finish (e.g., polished, brushed).
These visual characteristics are often the first indicators that allow us to differentiate between wood and metal based on their appearance alone.
Why is grouping materials important?- a)To make objects look pretty
- b)To locate and study their properties
- c)To play with different materials
- d)To hide materials from others
Correct answer is option 'B'. Can you explain this answer?
Why is grouping materials important?
a)
To make objects look pretty
b)
To locate and study their properties
c)
To play with different materials
d)
To hide materials from others
|
Nclex Coaching Centre answered |
- Grouping materials is important because it helps us find and study their properties easily.
- When we group materials based on their similarities and differences, we can understand how they look, feel, and behave.
- For example, grouping all the soft materials together can help us learn about materials that are soft to touch, like cotton or sponge.
- So, by grouping materials, we can learn a lot about them and how they can be used to make different things.
What is a distinguishing visual feature that sets wood apart from metals like iron, copper, and aluminum?- a)Conductivity
- b)Brittleness
- c)Natural Color and Grain Pattern
- d)High Density
Correct answer is option 'C'. Can you explain this answer?
What is a distinguishing visual feature that sets wood apart from metals like iron, copper, and aluminum?
a)
Conductivity
b)
Brittleness
c)
Natural Color and Grain Pattern
d)
High Density
|
|
Nishanth Iyer answered |
Wood can be distinguished from metals like iron, copper, and aluminum by its **Natural Color and Grain Pattern**.
- **Natural Color**: Wood typically has a warm and natural color that can vary depending on the type of wood. It can range from light shades like pine to dark tones like mahogany. In contrast, metals like iron, copper, and aluminum have a metallic appearance with shades of gray, silver, or copper.
- **Grain Pattern**: One of the most distinguishing features of wood is its grain pattern. The grain pattern in wood is the result of the arrangement of fibers in the wood, giving each type of wood a unique and beautiful pattern. This pattern is not present in metals like iron, copper, and aluminum, which have a smooth and uniform surface.
These visual features make it easy to differentiate between wood and metals like iron, copper, and aluminum at a glance.
- **Natural Color**: Wood typically has a warm and natural color that can vary depending on the type of wood. It can range from light shades like pine to dark tones like mahogany. In contrast, metals like iron, copper, and aluminum have a metallic appearance with shades of gray, silver, or copper.
- **Grain Pattern**: One of the most distinguishing features of wood is its grain pattern. The grain pattern in wood is the result of the arrangement of fibers in the wood, giving each type of wood a unique and beautiful pattern. This pattern is not present in metals like iron, copper, and aluminum, which have a smooth and uniform surface.
These visual features make it easy to differentiate between wood and metals like iron, copper, and aluminum at a glance.
Which of the following pairs correctly matches a soft material with a corresponding example?
- a)Cotton - Iron
- b)Sponge - Cotton
- c)Wood - Plastic
- d)Nails - Aluminum
Correct answer is option 'B'. Can you explain this answer?
Which of the following pairs correctly matches a soft material with a corresponding example?
a)
Cotton - Iron
b)
Sponge - Cotton
c)
Wood - Plastic
d)
Nails - Aluminum
|
Gurshaan Babra answered |
According to the given I think it can be cotton-iron too
Substances that can burn easily are called- a)Combustible substance
- b)Permeable substance
- c)Non-combustible substance
- d)Impermeable substance
Correct answer is option 'A'. Can you explain this answer?
Substances that can burn easily are called
a)
Combustible substance
b)
Permeable substance
c)
Non-combustible substance
d)
Impermeable substance
|
|
Divyansh Gupta answered |
The substances that can burn easily are called as combustible substance such as coal , petrol, wood etc.
Which is a magnetic material?- a)Copper
- b)Iron
- c)Aluminium
- d)Silver
Correct answer is option 'B'. Can you explain this answer?
Which is a magnetic material?
a)
Copper
b)
Iron
c)
Aluminium
d)
Silver
|
|
Ameya Ahuja answered |
Those substances that are attracted by magnet are called magnetic material. Iron is a magnetic material.
Can you explain the answer of this question below:Making orderly arrangement of materials is called
- A:
Grouping
- B:
Dividing
- C:
Classification
- D:
Division
The answer is C.
Making orderly arrangement of materials is called
Grouping
Dividing
Classification
Division
|
|
Rajeev Sen answered |
The sorting of objects into groups with each group having its own characteristic properties is called classification of objects. All the objects having similar characteristics properties are placed in one group different groups. And the objects having different properties are placed in different groups.
1. The classification of objects into groups makes it easier to locate them and work with them.
2. If we know the properties of any one member of the group, we can get an idea of the properties of the other members of this group.
Metallic object loose their lustre due to- a)Corrosion
- b)Melting
- c)Wetting
- d)Oiling
Correct answer is option 'A'. Can you explain this answer?
Metallic object loose their lustre due to
a)
Corrosion
b)
Melting
c)
Wetting
d)
Oiling
|
Shilpa nair answered |
The action of air, water on metal surface is called as corrosion. Due to corrosion metallic objects lose their lustre
Which object shines?- a)Plastic toy
- b)Cotton shirt
- c)Steel spoon
- d)Stone piece
Correct answer is option 'C'. Can you explain this answer?
Which object shines?
a)
Plastic toy
b)
Cotton shirt
c)
Steel spoon
d)
Stone piece
|
Maya Deshpande answered |
Shining Object:
Plastic toy
Cotton shirt
Steel spoon
Stone piece
Explanation:
Steel Spoon:
- Steel is a material known for its luster and reflective properties.
- When polished, steel has a shiny appearance that reflects light.
- Due to its smooth surface, steel can easily shine and appear bright.
- Therefore, out of the given options, the steel spoon is the object that shines.
Plastic toy
Cotton shirt
Steel spoon
Stone piece
Explanation:
Steel Spoon:
- Steel is a material known for its luster and reflective properties.
- When polished, steel has a shiny appearance that reflects light.
- Due to its smooth surface, steel can easily shine and appear bright.
- Therefore, out of the given options, the steel spoon is the object that shines.
Which of the following materials is classified as translucent?- a)Butter Paper
- b)Wood
- c)Metal
- d)Plastic
Correct answer is option 'A'. Can you explain this answer?
Which of the following materials is classified as translucent?
a)
Butter Paper
b)
Wood
c)
Metal
d)
Plastic
|
|
Maya Deshpande answered |
Translucent Material: Butter Paper
Translucent materials allow some light to pass through, but they scatter the light in different directions. One example of a translucent material is butter paper.
Explanation:
Butter Paper:
- Butter paper is a type of translucent material that allows light to pass through, but it diffuses or scatters the light.
- When light passes through butter paper, objects on the other side can still be seen, but the details may be blurred or softened.
- This property of allowing light to pass through partially makes butter paper useful for various applications such as wrapping food items or protecting surfaces while painting.
- Unlike transparent materials that allow light to pass through without scattering, translucent materials like butter paper scatter light to some extent, creating a semi-opaque effect.
Other Options:
- Wood, metal, and plastic are not classified as translucent materials. Wood and metal are typically opaque, meaning they do not allow light to pass through, while plastic can be transparent or opaque depending on its composition.
In conclusion, butter paper is classified as a translucent material because it allows light to pass through while scattering it in different directions, making it ideal for various practical uses.
Translucent materials allow some light to pass through, but they scatter the light in different directions. One example of a translucent material is butter paper.
Explanation:
Butter Paper:
- Butter paper is a type of translucent material that allows light to pass through, but it diffuses or scatters the light.
- When light passes through butter paper, objects on the other side can still be seen, but the details may be blurred or softened.
- This property of allowing light to pass through partially makes butter paper useful for various applications such as wrapping food items or protecting surfaces while painting.
- Unlike transparent materials that allow light to pass through without scattering, translucent materials like butter paper scatter light to some extent, creating a semi-opaque effect.
Other Options:
- Wood, metal, and plastic are not classified as translucent materials. Wood and metal are typically opaque, meaning they do not allow light to pass through, while plastic can be transparent or opaque depending on its composition.
In conclusion, butter paper is classified as a translucent material because it allows light to pass through while scattering it in different directions, making it ideal for various practical uses.
Properties of metal due to which it can be beaten into thin sheet is called
- a)Magnetic
- b)Ductility
- c)Solubility
- d)Malleability
Correct answer is option 'D'. Can you explain this answer?
Properties of metal due to which it can be beaten into thin sheet is called
a)
Magnetic
b)
Ductility
c)
Solubility
d)
Malleability
|
Swara Mukherjee answered |
The properties of metal due to which metal can be beaten into thin sheet is called as malleability. Gold is most malleable metal.
Why do lighter materials like paper, leaves, and wood float on the surface of water while heavier objects like those made from iron sink in water?- a)Due to their color
- b)Because they are less dense than water
- c)Because they are attracted to the surface tension of water
- d)Because they contain air bubbles
Correct answer is option 'B'. Can you explain this answer?
Why do lighter materials like paper, leaves, and wood float on the surface of water while heavier objects like those made from iron sink in water?
a)
Due to their color
b)
Because they are less dense than water
c)
Because they are attracted to the surface tension of water
d)
Because they contain air bubbles
|
Rahul Kumar answered |
Lighter materials like paper, leaves, and wood float on water because they are less dense than water. This means that they weigh less per unit of volume compared to water, allowing them to float. Understanding the concept of density helps explain why certain objects float while others sink.
The ability of solute a to get dissolved in to a solvent is called- a)Freezing
- b)Liquidity
- c)Melting
- d)Solubility
Correct answer is option 'D'. Can you explain this answer?
The ability of solute a to get dissolved in to a solvent is called
a)
Freezing
b)
Liquidity
c)
Melting
d)
Solubility
|
Keerthana Nambiar answered |
The ability of a solute to get dissolved in a solvent is called as solubility.
What characteristic makes materials like wood, aluminum, and nails susceptible to scratching with a metal key?
- a)High density
- b)Low density
- c)High hardness
- d)Low hardness
Correct answer is option 'D'. Can you explain this answer?
What characteristic makes materials like wood, aluminum, and nails susceptible to scratching with a metal key?
a)
High density
b)
Low density
c)
High hardness
d)
Low hardness
|
Rohini Seth answered |
Materials like wood, aluminum, and nails can be easily scratched with a metal key due to their relatively low hardness. Hardness is the resistance of a material to deformation or scratching, with softer materials being more prone to scratches and indentations.
Purpose of sorting material into groups is- a)to study their properties
- b)convenience
- c)both (a) and (b)
- d)inconvenience
Correct answer is option 'C'. Can you explain this answer?
Purpose of sorting material into groups is
a)
to study their properties
b)
convenience
c)
both (a) and (b)
d)
inconvenience
|
Neha Desai answered |
Reasons for Sorting Materials into Groups
Sorting materials into groups serves multiple purposes, including:
Understanding Properties
- By sorting materials into groups based on their properties, such as color, size, shape, and texture, it becomes easier to study and understand their characteristics.
- This categorization allows scientists and researchers to identify patterns and similarities among materials within the same group, leading to a better understanding of their properties.
Convenience
- Sorting materials into groups also offers convenience in various tasks. For example, in a laboratory setting, having materials organized into groups makes it easier to locate specific items when needed.
- It also helps in conducting experiments or investigations more efficiently, as materials with similar properties can be grouped together for comparative studies.
Combination of Both (a) and (b)
- The main purpose of sorting materials into groups is to combine the benefits of studying their properties and convenience.
- By categorizing materials based on their properties, not only do we gain a deeper understanding of the materials themselves, but we also make our work more organized and efficient.
Therefore, the correct answer is option 'C' - both (a) and (b). Sorting materials into groups helps us study their properties effectively while also providing convenience in various tasks related to handling and using different materials.
Sorting materials into groups serves multiple purposes, including:
Understanding Properties
- By sorting materials into groups based on their properties, such as color, size, shape, and texture, it becomes easier to study and understand their characteristics.
- This categorization allows scientists and researchers to identify patterns and similarities among materials within the same group, leading to a better understanding of their properties.
Convenience
- Sorting materials into groups also offers convenience in various tasks. For example, in a laboratory setting, having materials organized into groups makes it easier to locate specific items when needed.
- It also helps in conducting experiments or investigations more efficiently, as materials with similar properties can be grouped together for comparative studies.
Combination of Both (a) and (b)
- The main purpose of sorting materials into groups is to combine the benefits of studying their properties and convenience.
- By categorizing materials based on their properties, not only do we gain a deeper understanding of the materials themselves, but we also make our work more organized and efficient.
Therefore, the correct answer is option 'C' - both (a) and (b). Sorting materials into groups helps us study their properties effectively while also providing convenience in various tasks related to handling and using different materials.
Which of the following materials would likely be classified as a Brittle material?
- a)Rubber
- b)Plastic
- c)Glass
- d)Foam
Correct answer is option 'C'. Can you explain this answer?
Which of the following materials would likely be classified as a Brittle material?
a)
Rubber
b)
Plastic
c)
Glass
d)
Foam
|
|
Alok Chavan answered |
Explanation:
Hard Material:
- Glass is likely to be classified as a hard material because it is a solid and rigid substance that is known for its hardness and durability.
- Glass is made by heating sand or quartz particles until they melt and then cooling the mixture rapidly to form a hard material.
- Due to its structure, glass has a high degree of hardness compared to materials like rubber, plastic, and foam.
- Glass is commonly used in windows, mirrors, and various types of containers due to its hardness and ability to resist scratching and breaking.
- Unlike rubber, plastic, and foam which are softer and more flexible materials, glass is considered a hard material due to its rigid and brittle nature.
In conclusion, glass is the most likely material out of the options provided to be classified as a hard material.
Hard Material:
- Glass is likely to be classified as a hard material because it is a solid and rigid substance that is known for its hardness and durability.
- Glass is made by heating sand or quartz particles until they melt and then cooling the mixture rapidly to form a hard material.
- Due to its structure, glass has a high degree of hardness compared to materials like rubber, plastic, and foam.
- Glass is commonly used in windows, mirrors, and various types of containers due to its hardness and ability to resist scratching and breaking.
- Unlike rubber, plastic, and foam which are softer and more flexible materials, glass is considered a hard material due to its rigid and brittle nature.
In conclusion, glass is the most likely material out of the options provided to be classified as a hard material.
Rusting of iron takes place in presence of
- a)Air only
- b)Any gas
- c)Moisture only
- d)Air and moisture
Correct answer is option 'D'. Can you explain this answer?
Rusting of iron takes place in presence of
a)
Air only
b)
Any gas
c)
Moisture only
d)
Air and moisture
|
Gayatri Chavan answered |
Rusting occurs when iron is exposed to both air (which contains oxygen) and moisture. The presence of both oxygen and water allows for the formation of iron oxide, commonly known as rust, through a series of chemical reactions. The moisture provides the medium for oxygen to react with the iron surface, leading to the formation of rust.
CNG stands for
- a)Compressed natural gas
- b)Compound natural gas
- c)Common natural gas
- d)Compressed neutral gas
Correct answer is option 'A'. Can you explain this answer?
CNG stands for
a)
Compressed natural gas
b)
Compound natural gas
c)
Common natural gas
d)
Compressed neutral gas
|
|
Manasa Datta answered |
CNG stands for compressed natural gas. It is gaseous fuel and is a mixture of hydrocarbons mainly Methane. For use in Automobiles as fuel, it is compressed to a pressure of 200-250 Kg/cm² to enhance the vehicle on-board storage capacity.CNG is a fossil fuel substitute for other auto fuels such as petrol, diesel, Auto LPG etc
Which one will show a metallic lustre?- a)Any surface of a metal
- b)Freshly cut surface of a metal
- c)Freshly cut surface of non-metal
- d)Surfaces of all materials
Correct answer is option 'B'. Can you explain this answer?
Which one will show a metallic lustre?
a)
Any surface of a metal
b)
Freshly cut surface of a metal
c)
Freshly cut surface of non-metal
d)
Surfaces of all materials
|
Amar Nair answered |
Explanation:
Freshly Cut Surface of a Metal:
- When a metal is freshly cut, the surface is free from any impurities or oxidation.
- This clean surface allows light to reflect off the metal uniformly, giving it a shiny appearance known as metallic luster.
- The presence of free electrons in metals allows them to easily reflect light, giving them their characteristic shine.
Any Surface of a Metal:
- While all surfaces of a metal may exhibit metallic luster, it is most prominent on a freshly cut surface due to the absence of any contamination or oxidation.
- Over time, metals may develop a patina or oxide layer on their surface, which can diminish the metallic luster.
Freshly Cut Surface of Non-metal:
- Non-metals do not possess the same free electron structure as metals, so they do not exhibit metallic luster.
- Their surfaces may have different properties, such as being dull, transparent, or having a different type of sheen.
Surfaces of All Materials:
- Not all materials exhibit metallic luster. Only metals, with their unique electron configurations, are capable of reflecting light in a way that creates this specific type of shine.
Freshly Cut Surface of a Metal:
- When a metal is freshly cut, the surface is free from any impurities or oxidation.
- This clean surface allows light to reflect off the metal uniformly, giving it a shiny appearance known as metallic luster.
- The presence of free electrons in metals allows them to easily reflect light, giving them their characteristic shine.
Any Surface of a Metal:
- While all surfaces of a metal may exhibit metallic luster, it is most prominent on a freshly cut surface due to the absence of any contamination or oxidation.
- Over time, metals may develop a patina or oxide layer on their surface, which can diminish the metallic luster.
Freshly Cut Surface of Non-metal:
- Non-metals do not possess the same free electron structure as metals, so they do not exhibit metallic luster.
- Their surfaces may have different properties, such as being dull, transparent, or having a different type of sheen.
Surfaces of All Materials:
- Not all materials exhibit metallic luster. Only metals, with their unique electron configurations, are capable of reflecting light in a way that creates this specific type of shine.
What makes the basis of sorting materials into groups?
- a)Similarities in their properties
- b)Differences in their properties
- c)Both A and B
- d)none of these
Correct answer is option 'C'. Can you explain this answer?
What makes the basis of sorting materials into groups?
a)
Similarities in their properties
b)
Differences in their properties
c)
Both A and B
d)
none of these
|
|
Jyoti Kaur answered |
Similarities and Differences in Properties for Sorting Materials
Similarities and differences in properties play a crucial role in sorting materials into groups.
Similarities in Properties:
- Materials with similar properties can be grouped together based on characteristics such as color, shape, size, texture, etc.
- For example, all red colored objects can be grouped together because of their similarity in color.
Differences in Properties:
- On the other hand, materials with different properties can also be sorted into groups based on their distinct characteristics.
- For instance, objects that are hard can be separated from those that are soft, based on the difference in their property of hardness.
Both Similarities and Differences in Properties:
- Sometimes, a combination of similarities and differences in properties is used to sort materials into groups.
- This approach allows for a more detailed classification based on multiple properties such as weight, flexibility, conductivity, etc.
Conclusion:
- In conclusion, sorting materials into groups based on similarities and differences in their properties helps in organizing and categorizing various objects efficiently. It allows for easy identification, comparison, and understanding of different materials.
Similarities and differences in properties play a crucial role in sorting materials into groups.
Similarities in Properties:
- Materials with similar properties can be grouped together based on characteristics such as color, shape, size, texture, etc.
- For example, all red colored objects can be grouped together because of their similarity in color.
Differences in Properties:
- On the other hand, materials with different properties can also be sorted into groups based on their distinct characteristics.
- For instance, objects that are hard can be separated from those that are soft, based on the difference in their property of hardness.
Both Similarities and Differences in Properties:
- Sometimes, a combination of similarities and differences in properties is used to sort materials into groups.
- This approach allows for a more detailed classification based on multiple properties such as weight, flexibility, conductivity, etc.
Conclusion:
- In conclusion, sorting materials into groups based on similarities and differences in their properties helps in organizing and categorizing various objects efficiently. It allows for easy identification, comparison, and understanding of different materials.
What property distinguishes soft materials from hard materials based on the information provided?- a)Color
- b)Weight
- c)Compressibility
- d)Flexibility
Correct answer is option 'C'. Can you explain this answer?
What property distinguishes soft materials from hard materials based on the information provided?
a)
Color
b)
Weight
c)
Compressibility
d)
Flexibility
|
EduRev Class 6 answered |
Soft materials are characterized by being easily compressible, while hard materials are difficult to compress. For example, soft materials like cotton and sponge can be easily deformed under pressure, whereas hard materials like iron are resistant to compression due to their molecular structure.
What property of materials do we observe by looking through a sheet of paper with and without oil?- a)Color
- b)Transparency
- c)Hardness
- d)Shape
Correct answer is option 'B'. Can you explain this answer?
What property of materials do we observe by looking through a sheet of paper with and without oil?
a)
Color
b)
Transparency
c)
Hardness
d)
Shape
|
|
Nclex Coaching Centre answered |
When we look through a sheet of paper with and without oil, we are observing transparency. Transparency helps us understand if we can see through a material clearly or if it blocks our view. It's like looking through a clean window where you can see outside easily. Understanding transparency helps us know how light passes through different materials.
- When we look through a sheet of paper with and without oil, we are observing transparency.
- Transparency helps us understand if we can see through a material clearly or if it blocks our view.
- It's like looking through a clean window where you can see outside easily.
- Understanding transparency helps us know how light passes through different materials.
An oily thin paper sheet will be- a)transparent
- b)translucent
- c)opaque
- d)cannot be predicted
Correct answer is option 'B'. Can you explain this answer?
An oily thin paper sheet will be
a)
transparent
b)
translucent
c)
opaque
d)
cannot be predicted
|
Aaditya Chawla answered |
Understanding Oily Thin Paper Sheet
When we consider the properties of an oily thin paper sheet, we need to analyze how light interacts with it. The key terms involved are transparent, translucent, and opaque.
Characteristics of Transparency, Translucency, and Opacity
- Transparent: This means that light can pass through an object without being scattered. Clear glass is a common example.
- Translucent: This indicates that light can pass through, but it is scattered in different directions. Frosted glass is a typical example of translucency, allowing some light but not a clear image to pass through.
- Opaque: Opaque materials do not allow any light to pass through them. An example would be a solid wooden board.
Why Oily Thin Paper is Translucent
- Oil and Paper Interaction: When a thin paper sheet is coated with oil, it alters the way light interacts with the paper. The oil creates a layer that can scatter light, preventing a clear image from being seen through it.
- Light Scattering: The oil molecules cause light to scatter, which is characteristic of translucent materials. This means that while some light can pass through the oily paper, it will not do so in a straight line.
- Visual Effects: When looking through an oily thin paper sheet, you may notice that shapes and colors appear blurred, confirming that it does not allow light to pass through clearly.
Conclusion
Thus, an oily thin paper sheet is best classified as translucent because it allows light to pass through but scatters it, preventing clear visibility. Hence, option 'B' is correct.
When we consider the properties of an oily thin paper sheet, we need to analyze how light interacts with it. The key terms involved are transparent, translucent, and opaque.
Characteristics of Transparency, Translucency, and Opacity
- Transparent: This means that light can pass through an object without being scattered. Clear glass is a common example.
- Translucent: This indicates that light can pass through, but it is scattered in different directions. Frosted glass is a typical example of translucency, allowing some light but not a clear image to pass through.
- Opaque: Opaque materials do not allow any light to pass through them. An example would be a solid wooden board.
Why Oily Thin Paper is Translucent
- Oil and Paper Interaction: When a thin paper sheet is coated with oil, it alters the way light interacts with the paper. The oil creates a layer that can scatter light, preventing a clear image from being seen through it.
- Light Scattering: The oil molecules cause light to scatter, which is characteristic of translucent materials. This means that while some light can pass through the oily paper, it will not do so in a straight line.
- Visual Effects: When looking through an oily thin paper sheet, you may notice that shapes and colors appear blurred, confirming that it does not allow light to pass through clearly.
Conclusion
Thus, an oily thin paper sheet is best classified as translucent because it allows light to pass through but scatters it, preventing clear visibility. Hence, option 'B' is correct.
What characteristic of materials is highlighted by the statement "Materials with a shiny or lustrous appearance are generally metals"?- a)Density
- b)Conductivity
- c)Ductility
- d)Appearance
Correct answer is option 'D'. Can you explain this answer?
What characteristic of materials is highlighted by the statement "Materials with a shiny or lustrous appearance are generally metals"?
a)
Density
b)
Conductivity
c)
Ductility
d)
Appearance
|
Dr Manju Sen answered |
The statement emphasizes the visual appearance as a distinguishing feature of metals. Metals like iron, copper, aluminum, and gold are known for their shiny or lustrous appearance, which is often most noticeable on freshly cut surfaces due to their reflective nature. This characteristic is a result of the way light interacts with the metallic structure, leading to the perception of shine or luster.
The substance through which light do not pass is called- a)Opaque object
- b)Translucent object
- c)Semiconductor
- d)Transparent object
Correct answer is option 'A'. Can you explain this answer?
The substance through which light do not pass is called
a)
Opaque object
b)
Translucent object
c)
Semiconductor
d)
Transparent object
|
|
Preethi Roy answered |
The substance through which light do not pass easily is called as opaque object. Brick, book etc are example of opaque objects.
Which is soluble in water?- a)Sand
- b)Sugar
- c)Mustard oil
- d)Plastic
Correct answer is option 'B'. Can you explain this answer?
Which is soluble in water?
a)
Sand
b)
Sugar
c)
Mustard oil
d)
Plastic
|
|
Nidhi Deshpande answered |
Sugar is soluble in water while mustard oil, sand and plastic is insoluble in water.
Study the given flowchart carefully.
P, Q and R could be respectively- a)Chalk powder, water and sawdust.
- b)Salt, water and sugar.
- c)Sugar, water and sawdust.
- d)Sawdust, water and sugar.
Correct answer is option 'C'. Can you explain this answer?
Study the given flowchart carefully.
P, Q and R could be respectively
P, Q and R could be respectively
a)
Chalk powder, water and sawdust.
b)
Salt, water and sugar.
c)
Sugar, water and sawdust.
d)
Sawdust, water and sugar.
|
Shilpa Kulkarni answered |
In the mixture of sugar, water and sawdust, firstly sawdust (R) being insoluble in water, is removed by filtration and then sugar (P) is separated from water (Q) by evaporation.
Match the column I with column II and select the correct option from the codes given:
- a)P-(iii),Q-(iv),R-(v), S-(i),T-(ii)
- b)P-(v), Q-(iii), R-(iv), S-(ii), T-(i)
- c)P-(ii), Q-(i), R-(iv), S-(v), T-(iii)
- d)P-(iv), Q-(iii), R-(v), S-(ii), T-(i)
Correct answer is option 'D'. Can you explain this answer?
Match the column I with column II and select the correct option from the codes given:
a)
P-(iii),Q-(iv),R-(v), S-(i),T-(ii)
b)
P-(v), Q-(iii), R-(iv), S-(ii), T-(i)
c)
P-(ii), Q-(i), R-(iv), S-(v), T-(iii)
d)
P-(iv), Q-(iii), R-(v), S-(ii), T-(i)
|
Yashvi Choudhary answered |
Chalk-water mixture -A heterogeneous solid-liquid mixture Glucose solution - A homogeneous solid- liquid mixture Fizzy drink - A gas-liquid mixture Smoke - A solid-gas mixture Air - A gaseous mixture
Which of these materials is not transparent?- a)Glass
- b)Water
- c)Metal
- d)Clear Plastic
Correct answer is option 'C'. Can you explain this answer?
Which of these materials is not transparent?
a)
Glass
b)
Water
c)
Metal
d)
Clear Plastic
|
|
Dr Manju Sen answered |
To determine which material is not transparent:
- Glass: Transparent material that allows light to pass through.
- Water: Transparent substance that allows light to pass through.
- Metal: Not transparent; it doesn't allow light to pass through due to its opaque nature.
- Clear Plastic: Transparent material that permits light to pass through.
Therefore, the correct answer is C: Metal. Metal is not transparent because it is opaque, unlike glass, water, and clear plastic, which are transparent materials.
- Glass: Transparent material that allows light to pass through.
- Water: Transparent substance that allows light to pass through.
- Metal: Not transparent; it doesn't allow light to pass through due to its opaque nature.
- Clear Plastic: Transparent material that permits light to pass through.
Therefore, the correct answer is C: Metal. Metal is not transparent because it is opaque, unlike glass, water, and clear plastic, which are transparent materials.
Chapter doubts & questions for Sorting Materials into Groups - Online MCQ Tests for Class 6 2025 is part of Class 6 exam preparation. The chapters have been prepared according to the Class 6 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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