5th std EVS chapter 1 our earth and our solar systems l question and answer l

 

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Environmental Studies l 5th Standard

Chapter 1. Our Earth And Our Solar Systems

Question And Answer

 

Q. Who am I ?

1) You can see me from the earth but the lighted part of me that you see changes every day - Moon

2) I have my own light. It is only from me that the planets get light and heat - Sun

3) I turn around myself, around a planet and also around a star - Satellite

4) I turn around myself and revolve around the sun - Planet

5) No other planet has a living world like mine - Earth

6) I am the nearest star to the earth - Sun

Q. Answer the following questions.

1) For what purpose are rockets used in space travel ?

Ans. i) Space launch technology is used to send the spacecraft in outer space against

the force of gravity.

ii) It requires tremendous amount of energy to launch the spacecraft which is thousands

of tons in weight.

iii) This Energy is obtained through burning of ample quantity of fuel present in the rocket.

Thus rockets are used to launch the spacecraft in travel.

2) What information do man-made satellites provide ?

Ans. i) Man-made satellites provide useful information on agriculture, environment,

weather forecasting, searching for water, and minerals from the earth.

ii) Such information can be used to make maps. Man-made satellites are also used for

telecommunications.

Q. Fill in the Blanks.

1) Stars have their own light.

2) Movement of the earth around the sun is called its revolution.

3) The moon is called the satellite of the earth.

4) Pluto is a dwarf planet.

5) Due to the earth's gravity, all things on the earth remain on it.

Thank You…

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