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प्रश्न
If the earth is round like a globe, how is it that we do not fall off?
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उत्तर
The gravitational force of the earth attracts everything towards itself. That is why we do not fall off.
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संबंधित प्रश्न
What do you think the earth looks like? Make a drawing of the earth in your notebook. On your drawing show where you are. Take a look at your friends’ drawings too.
Do the people in Argentina stand upside down?
Can you think why Sunita’s hair was standing?
Can you now say why Sunita’s hair kept standing?
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!
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?
Do you think the moon is flat like the coin or round like a ball?
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.
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?
