Page 8 - SST Class 03

2. There are ____________ planets in the solar system.

(a) nine (b) eight (c) seven
3. Ferdinand Magellan sailed west and reached ____________ place.

(a) the same (b) a different (c) none of these
4. The Earth has two motions : revolution and ____________ .

(a) quotation (b) lotion (c) rotation
5. The Earth looks blue due to so much of ____________ .

(a) water (b) air (c) gas
B. Match :

solar system ¡ ¡ a body going round the Sun

planet ¡ ¡ round the Sun
revolution ¡ ¡ on its axis

rotation ¡ ¡ Earth-sky seem to meet
atmosphere ¡ ¡ the Sun and planets

horizon ¡ ¡ envelope of air
C. Answer the questions briefly :

1. Why does the Sun look small?
2. What is a planet?

3. How was the Earth found to be round?
4. What are the two motions of the Earth?

5. Why is the Earth called the Blue Planet?

The Earth and You

v All the buildings in the picture
are equally tall, but they seem to
be taller and shorter. Can you tell
why?

______________________________

______________________________

8 Contemporary Social Science-3