Advertisements
Advertisements
Question
Take a 5 rupee coin and a small piece of paper. The paper should be about one-fourth the size of the coin.
- Hold the coin in one hand and the paper in the other. Drop them at the same time. What happened?
- Now place the tiny paper on the coin and drop them. What happened this time? Surprised!
Advertisements
Solution
- In the first case, the coin fell down more quickly than the piece of paper.
- In the second case, both paper and coin fell down at the same time.
APPEARS IN
RELATED QUESTIONS
Look at Sunita’s photographs and the dates written on each of them. Write what all is happening and when?
Can you now say why Sunita’s hair kept standing?
To play this you will need a small stone, a bigger stone (lemon-sized), a thick roll of paper (which can be made with layers of paper), a mouse, and an elephant made of paper.

- Take a string about 2 feet long.
- At one end of the string tie the small stone. Stick or tie the mouse to the stone. - Put the string into the roll of paper.
- At the other end of the string tie the bigger stone and stick the elephant.
- Hold the roll of paper and move your hand to rotate the small stone.
- Who is pulling whom? You will be surprised! The mouse lifts the elephant! How did this magic happen?

- Can you find India?
- Where all do you find the sea?
- Which countries can you see?
- Can you see some of the countries with which India plays cricket matches? For example England, Australia, Pakistan, Bangladesh, and South Africa.
- What else can you see on the globe?
What are the festivals related to the moon?
At night look at the sky carefully for 5 minutes.
- What could you see?
- Did you see anything moving in the sky? What do you think it could be? A star or a shooting star or a satellite (satellites are used for the TV, telephones, and for weather reports). Find out more about this.
See how the earth is looking. Can you see the surface of the moon? Do you have some questions after looking at this picture? Write down those questions and discuss them in the class.

Looking at earth from the space, Sunita said, “Different countries cannot be seen as separate from here. These lines are on paper. They are made by us.” What do you understand by this?
Why don’t you try to do the same with a coin? How many centimeters away from the eye did you keep the coin to hide the moon?
If you saw the moon rising at 7 pm today, would you see it at the same time tomorrow?
