Page 80 - BUDDY 7 Activity Book

Environment
Planets Unit 10

2 Read the definitions and circle the correct word.

1. something that makes you believe that something is true or exists
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evidence astronomy

2. to go around a place to find out what is there

produce explore

3. the circular journey that a spacecraft or planet makes around the Sun, the Moon or
another planet

orbit galaxy

4. a large, round object in space that moves around the Sun or another star

planet meteor

5. the top or outside part of something

size surface

6. everything that exists, including stars, space etc.

universe solar

7. the force that makes objects fall to the ground or that pulls objects towards a planet or
other body

gravity mass

8. the mixture of gases around the Earth

orbit atmosphere