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All questions of Matter & Materials for Grade 4 Exam
Which of the following is a property of matter?- a)Color
- b)Sound
- c)Light
- d)Heat
Correct answer is option 'A'. Can you explain this answer?
Which of the following is a property of matter?
a)
Color
b)
Sound
c)
Light
d)
Heat
|
Flembe Academy answered |
Color is a physical property of matter that can be observed and described.
What happens to the volume of a gas when it is compressed?- a)It increases
- b)It decreases
- c)It remains the same
- d)It cannot be determined
Correct answer is option 'B'. Can you explain this answer?
What happens to the volume of a gas when it is compressed?
a)
It increases
b)
It decreases
c)
It remains the same
d)
It cannot be determined
|
Bespoke Classes answered |
When a gas is compressed, its particles are forced closer together, resulting in a decrease in volume.
What is the process called when a solid changes directly into a gas without becoming a liquid first?- a)Melting
- b)Evaporation
- c)Condensation
- d)Sublimation
Correct answer is option 'D'. Can you explain this answer?
What is the process called when a solid changes directly into a gas without becoming a liquid first?
a)
Melting
b)
Evaporation
c)
Condensation
d)
Sublimation
|
|
Flembe Academy answered |
Sublimation is the process in which a solid changes directly into a gas without passing through the liquid state. Examples of substances that can sublime include dry ice (solid carbon dioxide) and mothballs (naphthalene).
Which state of matter has a definite shape and volume?- a)Solid
- b)Liquid
- c)Gas
- d)Plasma
Correct answer is option 'A'. Can you explain this answer?
Which state of matter has a definite shape and volume?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
|
|
Flembe Academy answered |
Solids have a definite shape and volume because their particles are tightly packed and do not move freely.
Which of the following is an example of a non-magnetic material?- a)Iron
- b)Copper
- c)Plastic
- d)Nickel
Correct answer is option 'C'. Can you explain this answer?
Which of the following is an example of a non-magnetic material?
a)
Iron
b)
Copper
c)
Plastic
d)
Nickel
|
Aurora Institute answered |
Plastic is a non-magnetic material, while iron, copper, and nickel are magnetic materials.
What happens to the volume of a gas when it is heated?- a)It increases
- b)It decreases
- c)It remains the same
- d)It cannot be determined
Correct answer is option 'A'. Can you explain this answer?
What happens to the volume of a gas when it is heated?
a)
It increases
b)
It decreases
c)
It remains the same
d)
It cannot be determined
|
|
Bespoke Classes answered |
When a gas is heated, its particles gain energy and move faster, causing the gas to expand and occupy a larger volume. Heating a gas increases the average distance between the particles, leading to an increase in volume.
Which of the following is an example of a solid material?- a)Water
- b)Air
- c)Wood
- d)Steam
Correct answer is option 'C'. Can you explain this answer?
Which of the following is an example of a solid material?
a)
Water
b)
Air
c)
Wood
d)
Steam
|
|
Aurora Institute answered |
Wood is an example of a solid material because it has a definite shape and volume. Unlike liquids or gases, wood cannot be poured or easily compressed.
Which of the following is an example of a liquid?- a)Ice
- b)Water vapor
- c)Sand
- d)Juice
Correct answer is option 'D'. Can you explain this answer?
Which of the following is an example of a liquid?
a)
Ice
b)
Water vapor
c)
Sand
d)
Juice
|
|
Aurora Institute answered |
Juice is a liquid state of matter, while ice is a solid and water vapor is a gas.
Name the solutes that are soluble in water?- a)Sand and salt
- b)Sand and sugar
- c)Sugar and salt
- d)Salt and kerosene
Correct answer is option 'C'. Can you explain this answer?
Name the solutes that are soluble in water?
a)
Sand and salt
b)
Sand and sugar
c)
Sugar and salt
d)
Salt and kerosene
|
|
Bespoke Classes answered |
The correct answer is C: Sugar and salt. Both sugar and salt are solutes that are soluble in water.
Which of the following materials is an insulator?- a)Copper
- b)Rubber
- c)Aluminum
- d)Silver
Correct answer is option 'B'. Can you explain this answer?
Which of the following materials is an insulator?
a)
Copper
b)
Rubber
c)
Aluminum
d)
Silver
|
|
Flembe Academy answered |
Rubber is an insulator because it does not allow electricity or heat to pass through it easily. Insulators are materials that have high resistance to the flow of electricity or heat.
What is the basic building block of matter?- a)Atoms
- b)Elements
- c)Compounds
- d)Molecules
Correct answer is option 'A'. Can you explain this answer?
What is the basic building block of matter?
a)
Atoms
b)
Elements
c)
Compounds
d)
Molecules
|
|
Flembe Academy answered |
Atoms are the smallest units of matter that retain the properties of an element.
What happens to the state of matter when a liquid is cooled?- a)It turns into a gas
- b)It turns into a solid
- c)It remains a liquid
- d)It cannot be determined
Correct answer is option 'B'. Can you explain this answer?
What happens to the state of matter when a liquid is cooled?
a)
It turns into a gas
b)
It turns into a solid
c)
It remains a liquid
d)
It cannot be determined
|
|
Bespoke Classes answered |
When a liquid is cooled, it loses energy and undergoes a phase change, turning into a solid.
What is the process called when a liquid changes into a gas?- a)Melting
- b)Evaporation
- c)Condensation
- d)Freezing
Correct answer is option 'B'. Can you explain this answer?
What is the process called when a liquid changes into a gas?
a)
Melting
b)
Evaporation
c)
Condensation
d)
Freezing
|
|
Aurora Institute answered |
Evaporation is the process in which a liquid changes into a gas at a temperature below its boiling point. During evaporation, the particles in the liquid gain enough energy to escape into the air as vapor.
Which of the following materials is transparent?- a)Paper
- b)Metal
- c)Glass
- d)Wood
Correct answer is option 'C'. Can you explain this answer?
Which of the following materials is transparent?
a)
Paper
b)
Metal
c)
Glass
d)
Wood
|
|
Bespoke Classes answered |
Glass is a transparent material that allows light to pass through, while paper, metal, and wood are opaque materials.
What is the state of matter of a banana?- a)Solid
- b)Liquid
- c)Gas
- d)Plasma
Correct answer is option 'A'. Can you explain this answer?
What is the state of matter of a banana?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
|
|
Bespoke Classes answered |
A banana is a solid because it has a definite shape and volume. Solids have particles that are closely packed together and do not flow easily.
Which of the following is an example of a liquid material?- a)Glass
- b)Metal
- c)Paper
- d)Milk
Correct answer is option 'D'. Can you explain this answer?
Which of the following is an example of a liquid material?
a)
Glass
b)
Metal
c)
Paper
d)
Milk
|
|
Bespoke Classes answered |
Milk is an example of a liquid material because it takes the shape of its container and can flow. Liquids have particles that are close together but can move past one another.
Which of the following is an example of a gas material?- a)Iron
- b)Plastic
- c)Oxygen
- d)Brick
Correct answer is option 'C'. Can you explain this answer?
Which of the following is an example of a gas material?
a)
Iron
b)
Plastic
c)
Oxygen
d)
Brick
|
|
Flembe Academy answered |
Oxygen is an example of a gas material because it does not have a definite shape or volume. Gases can expand to fill the space available to them.
Which of the following materials is a conductor of electricity?- a)Plastic
- b)Aluminum
- c)Glass
- d)Rubber
Correct answer is option 'B'. Can you explain this answer?
Which of the following materials is a conductor of electricity?
a)
Plastic
b)
Aluminum
c)
Glass
d)
Rubber
|
|
Flembe Academy answered |
Aluminum is a conductor of electricity, while plastic, glass, and rubber are insulators.
Which of the following is a good conductor of heat?- a)Rubber
- b)Glass
- c)Metal
- d)Wood
Correct answer is option 'C'. Can you explain this answer?
Which of the following is a good conductor of heat?
a)
Rubber
b)
Glass
c)
Metal
d)
Wood
|
|
Bespoke Classes answered |
Metals are good conductors of heat due to the movement of free electrons, while rubber, glass, and wood are poor conductors.
Which of the following materials is a conductor?- a)Plastic
- b)Glass
- c)Copper
- d)Wood
Correct answer is option 'C'. Can you explain this answer?
Which of the following materials is a conductor?
a)
Plastic
b)
Glass
c)
Copper
d)
Wood
|
|
Aurora Institute answered |
Copper is a conductor because it allows electricity or heat to pass through it easily. Conductors are materials that have low resistance to the flow of electricity or heat.
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