Across
- 4. study of living things
- 6. amount of space an object takes up
- 8. a living thing
- 9. the study of the universe
- 12. organisms and their environment
- 13. smallest building blocks of matter
- 14. power
- 16. stuff things are made of
- 17. basic unit of life
Down
- 1. a test to discover something
- 2. an educated guess
- 3. average weather conditions over time
- 5. to watch carefully
- 7. how hot or cold
- 10. two or more atoms joined together
- 11. something proven to be true
- 15. pulls all matter together