The World of Things NCERT Solutions | EVS Class 3: The World around us (Our Wondrous World) PDF Download

Let's Take A Look Around Us! (Page 125)

Q: Can you name the things that Khushi has drawn ? Write in the boxes given.

Ans: 

Activity (Page 124)

Q: Understand your Classroom

Draw a picture of your classroom in your notebook. Label the things that you have drawn.

Khushi is curious, "Where have all these things come from? Who has made them? What are they all made of?" she thought.

Let us help Khushi find out.

The table and chair are made of wood. Where do we get wood from?

The hinges, nails and latches of the door are made of some metals.

Ans:  Students are encouraged to attempt it on their own.

Activity 2 (Page 125)

Spot the Metals

Q: Find as many things or parts of things, that are made of metals. Which metals do you recognise around you? If you do not know the name of the metal, ask your friends or an elder. Make a list of these metals in your notebook.

Ans: I looked around and found many things made of metals. Some of the items I found include:

Door hinges – made of iron

Spoon – made of stainless steel

Water tap – made of brass

Coins – made of copper or nickel

Scissors – made of steel 

Seeing through Things (Page 126)

Q: Collect a few small objects of different materials from your surroundings like bottles, papers, cloth, and utensils, etc. Look at a light bulb or a candle flame through them. You can see through some objects very clearly, you can partially see through some others, while you cannot see through some objects at all. Order these objects from those you can see through very clearly, to those you cannot see through at all.

Ans:

See through clearly : Clear glass bottle , Clear Plastic Bottle , Clean Water

See through Partially : Frosted glass, Butter Paper, Thin Fabric

Cannot see through at all : Wooden door , Book, Metal

Activity 4 (Page 127)

Q: Let us colour the world!

Collect two or three see-through bags, bottles or thin cloth of different colours. Look at a sheet of white paper through them.

Does the colour of the paper appear to change?

Does white paper appear different when you look at it through thin blue plastic or glass? Or, thin yellow plastic or glass?

Do the colours of different objects appear to change? How did a blue object look through thin yellow plastic?

Have you earlier experienced looking through coloured transparent objects? Try to recall such experiences.

Ans: Students are encouraged to attempt it on their own.

Chain Game (Page 128)

Q: Where do all these materials come from ?  Can you locate their source ?

For Example, Wood - Tree

Metals - ____________ 

Cloth - ______________

Ans: 

Metals — Metals are extracted from ores, which are found in the Earth.

Cloth — Cloth is made from natural fibers like cotton (from plants) or wool (from animals) or synthetic materials such as polyester.

Talk to your Grandparents (Page 129)

1. Talk to your Grandparents

• In their childhood, were these things made of the same materials?
• Are there new materials now that they might not have seen before?
• Are there any materials that they saw in their childhood that are not in use now? Why?

Ans: Yes, materials can differ in various ways, not just how they look. For example, texture, weight, etc.

2. What material is your spoon made of?

Ans: My spoon is made up of Steel. 

Is it made of metal, wood or some other material? Can you guess?

Ans: Steel is an Alloy.

Which of these words or phrases describes the spoon?

Ans: The Spoon is Smooth and Shiny.

Activity 5 (Page 130)

Knock on it and it will speak to you! Orchestra

Take a metal spoon and at least five objects made up of different materials-wood, metal, plastic, cloth and glass. Gently tap the spoon on each of them. Listen to the sound that each of them makes. Make your own words to describe all these different sounds.

Ans: Students are encouraged to attempt it on their own.

Write (Page 130)

Odd Pairs
Q: List five objects and pair them with a material that is not suitable for it! Explain why these materials will not work to make these objects. One example is done for you.

Ans: 

Activity 6 (Page 132)

Q: Let’s group them another way!

Here are the names of some objects: ink, a stone, smoke, ice, steam, a spoon, honey, a bottle, a bag, and water.

If it is a solid, write its name on the tray; if it is a liquid, write it in the bottle; if it is a gas, write it in the balloon.

Add some of your objects in the tray, bottle, and balloon.

Ans: 

Q: Some objects could be confusing, such as sand sponge, or clay. Identify more such objects and write the names of at least three of them.

Ans: Cotton Candy , Silica Gel and Pumice Stone

Natural — Artificial (Page 133)

Q: List out five things in each group.

Ans:

• Natural: Tree, Mango, Bird, Rock, Water
• Artificial: Clothes, Shoes, Table, Car, Book

Let us Reflect (Page 134)

A. Write

Q: Things around us are made of different types of materials. Write down the names of three materials we commonly see around us.

Ans:

• Wood
• Metal
• Plastic

B. Discuss

Q: Suppose you find a shining spoon. You don’t know if it is made of metal or whether it is made of some other material and then painted with shiny paint. How would you find out?

Ans: I would tap the spoon on a hard surface and listen to the sound it makes. A metal spoon would make a distinct ringing sound. I could also check the weight and feel of the spoon, as metal spoons are generally heavier and feel cooler to the touch than painted plastic spoons.

C. Draw

Q: Draw three natural and three artificial things.

Ans:

D. Do it

Q: Match the pairs

Ans: