Across
- 2. cold blooded animals with skin covered with hard scales
- 4. tree which has needle shaped leaves and has seed cones
- 7. plants green color captures light energy used in
- 9. water is heated to boiling turns into
Down
- 1. organisms which are not seen by naked eyes
- 3. device that makes very small objects appear large
- 5. addition of harmful materials to environment
- 6. skeletal system is made up of
- 8. an important part of circulatory system
- 10. blanket of it surrounds the earth