Think and find out :
1. 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 drawing too.
Ans : The earth look like a sphere.
2. If the earth is round like a globe, How is it that we do not fall off.
Ans: It is due to Gravitational pull from the earth towards itself.
3. Do the people in Argentina stand upside down.
Ans: No they don’t stand upside down. There is a concept like standing upwards or downwards, everything is relative.
4. Look at the photograph and write.
i) Can you see why Sunita’s hair were standing.
Ans: Sunita’s hair were standing because she was in space and there is zero gravity which makes everything float.
5. Look at Sunita’s photographs and the dates written on each of them. Write what all happening and when.
Ans :
| Date | Events |
| 1. 09-12-2006 | The spacecraft is taking off. |
| 2. 11-12-2006 | Astronauts are floating inside the spacecraft. |
| 3. 11-12-2006 | Astronauts are taking food. |
| 4. 13-12-2006 | Sunita is working. |
| 5. 16-12-2006 | Sunita is roaming outside the spacecraft. |
Classroom becomes a Spaceship
6. Close your eyes. Imagine that your class is a spaceship. Zooo…m – in 10 minutes you have entered in space. Your spaceship is now going around the earth. Now say:
i) Are you able to sit one place.
Ans: No, I am unable to sit at one place as everyone and everything is floating in air.
ii) What about your hair.
Ans: My hairs are standing up.
iii) Oh, look… where are your bags and books going.
Ans: My bags and books are also floating.
iv) And what is your teacher is doing. Where is her chalk.
Ans: My teacher is also floating and she is trying to catch the chalk.
v) How did you eat your food during the break. How did you drink water. What happened to the ball that you threw up.
Ans: I had grab the puri, flying in the air, the water floated in the form of blobs and I had to suck them. The ball I threw up started floating in air.
vi) Act out or draw the scene.
Ans: Students can act out their scene.
7. Can you now say why Sunita’s hair kept standing.
Ans: Sunita’s hair kept standing because there is zero gravity in space.
8. Think why water flows downwards on any slope. On mountains too water flows downwards, not upwards.
Ans: Water flows downwards because of the force of gravity of the earth.
9. Magic 1 – A tiny paper races a coin :
Take a 5 rupee coin and a small piece of paper. The paper should be about one fourth the size of the coin.
i) Hold a 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!
Ans: In the first case the coin fell down quickly than the piece of paper. In the second case both paper and coin fell down at the same time.
10. Magic 2 – A mouse left an elephant!
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), mouse and an elephant made of paper.
i) Take a string about 2 feet long.
ii) At one end of the string tie the small stone. Stick or tie the mouse to the stone.
iii) Put the string into the roll of paper.
iv) At the other end of the string tie the bigger stone and stick the elephant.
v) Hold the roll of paper and move your hand to rotate the small stone.
vi) Who is pulling whom. You will be Surprised! The mouse life the elephant! How did this magic happened.
Ans: When the small stone starts rotating it creates a force due to which the bigger stone is pulled up.
11. Look at the photograph and tell :
i) Can you see India.
Ans: Yes, I can see India.
ii) Can you recognize any other place.
Ans: Yes, I can recognize Srilanka.
iii) Where is the sea.
Ans: The blue part of the picture indicates the sea.
iv) Do you find anything similar between the globe and this picture of the earth. In what way are they different.
Ans: The similarity is that land and sea can be easily differentiated. The difference is that it is difficult to recognize a particular country or city.
v) Do you think sunita could make out Pakistan, Nepal and Burma separately, when she saw the earth from the space.
Ans: No, I think she could not make out these countries when she saw the earth from space.
12. Look at a Globe in your School :
i) Can you find India.
Ans: Yes, I can easily see India.
ii) Where all do you find the sea.
Ans: The sea is shown by blue colour on the globe.
iii) Which countries can you see.
Ans: I can see all countries , some countries are UK, USA, France, Canada etc.
iv) Can you see some of the countries with which India plays cricket matches. For example England, Australia, Pakistan, Bangladesh and South Africa.
Ans: Yes, I can see these countries.
v) What else can you see on the Globe.
Ans: Besides sea and countries, I can see mountains, islands, etc. on the globe.
13. Look at the Map given in this Book and Tell :
i) Can you find the state in which you live. Write its name.
Ans: Yes, I can find the state in which I live in. It is Goa.
ii) Which are the states next to the state you live in.
Ans: Maharashtra and Karnataka are next to my state.
iii) Have you been to any other state.
Ans: I have been to many states like Delhi, Kerala etc.
iv) Shahmir thinks that there are lines drawn on the ground between the states. What do you think.
Ans: These lines are just on the map and are not in the ground.
14. Why don’t you try to do the same with a coin. How many centimetres away from the eye dd you keep the coin to hide the moon.
Ans: When I kept the coin at about 25 cm from my eye, the moon completely disappeared.
15. Do you think the moon is flat like the coin or round like a ball.
Ans: I think the moon is round like a ball.
16. Look at the moon tonight and draw what it looks like. Look and draw again after one week, and then after 15 days.
Ans :
17. What is the next full moon. At what time will the moon rise on this day. What does a moon looks like on this day. Draw it .
Ans: the next full moon is on 24th of this month. It will rise just after the sunset. The full moon looks like a complete circle.
18. What are the festivals related to moon.
Ans: Many festivals are related to moon like Holi, Eid, Karwa Chauth, Dusshera, etc.
19. At night look at the sky carefully for five minutes.
i) What could you see.
Ans: I could the moon and the stars.
ii) 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 TV, telephones and for weather reports.) find out more about this.
Ans: Yes, I saw something moving in the sky. The thing which appears to cross the sky quickly is a shooting star. The satellite looks like a moving tiny dot which appears to move very slowly.
20. Look at the table and tell :
Given below are the times at which the moon rises and sets in Delhi. (On the given days) .
| Date | Time of moon rise
(Hours: Minutes) |
Time of moon set (Hours: Minutes) |
| 28-10-2007 | 19:16 | 08:50 |
| 29-10-2007 | 20:17 | 10:03 |
| 30-10-2007 | 21:22 | 11:08 |
| 31-10-2007 | 22:29 | 12:03 |
i) On 28 October the moon came out at ______ minutes past ______O’clock.
ii) On 29 October the moon came out at______ minutes past______O’clock.
iii) On 29 October there was a difference of ______ hours and ______ minutes in the time of the moon rise (As compared to 28 October.)
iv) If you saw the moon rising at 7 pm today, would you see it at the same time tomorrow.
v) On 31 October the time of setting of the moon is given as 12:03. Have you ever seen the moon at 12 in the afternoon. Why don’t we easily see the moon or stars during the day.
Ans:
i) 16 minutes past 7 O’clock.
ii) 17 minutes past 8 O’clock.
iii) 1 hour 1 minute.
iv) No, I would not see the moon at the same time tomorrow.
v) No, I have never seen the moon at 12 in the afternoon. During the day the sunlight is too much so we can’t see the moon or stars.
21. An Interesting Photograph :
i) 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.
Ans: I can see the surface of the moon. The following Questions come in my mind:
a) Who took this picture and from where did he take it.
b) How does the surface of moon look in real life.
c) Is there water or air the moon.
22. Why do children always slide down the slide and not slide up. If this slide were there in Sunita’s spacecraft, would children slide like this. Why.
Ans: Children always slide down the slide and not slide up because of the gravitational force of the earth. If the slide were in Sunita’s spacecraft, then children would not be able to enjoy the slide because of zero gravity in the spacecraft.
23. Why do we see stars mostly at night.
Ans: There is no sunlight during the night. As a result the light from stars is not hidden by the sun’s glare and we are able to see them at night.
24. 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.
Ans: Boundaries between nations are created by humans. The nature has made a single earth where there is no boundary. All of us are same, ‘ The inhabitants of the earth’.
25. Say whether the statement are true or false :
1. You see the moon rising at the same time every day.
2. One cannot see division of different countries from the space.
3. From space, one cannot make out land and the sea.
4. The earth pulls everything towards.
Answers :
1. False 2. True 3. False 4. True .
26. Fill in the blanks :
1. In 1969, __________ was the first man to walk on the moon.
2. In 2007, ___________ set a new record for the longest space flight by a women.
3. _________ can be seen twinkling.
4. We see stars mostly at ________.
5. A shining object which seems to move with a constant speed in the sky can be ________.
6. The shooting star is actually a ________ which catches fire when it enters the earth’s atmosphere.
Answers :
1. Neil Armstrong 2. Stars 3. Sunita Williams 4. Night 5. Satellites 6. Meteorite .
27. Match the followings:
| Column A | Column B |
| 1. Sky, Stars, Sun and moon | Represents Seas |
| 2. Blue part on the globe | Gravity |
| 3. People in Argentina and India are | They are all in space |
| 4. pull of earth is called | Standing upside down in relation to each other. |
Answers :
1. They are all in spaces 2. Represents seas.
3. Standing upside down 4. In relation to other gravity.