Across
- 3. To know something for sure
- 5. To watch how it is done
- 8. A small piece of something
- 9. Another word for "in your genes"
- 11. ______ word walls
- 14. To make a theroy
- 15. Hot and cold
- 16. Humans have blood ______
- 18. Science is very ________
- 20. _____ table
Down
- 1. You have to collect it
- 2. Multiplication, division, etc.
- 4. In the act of moving
- 6. The leftovers from something dead
- 7. They protect your eyes
- 10. Its blue and green
- 12. The diffrent weather
- 13. A human, animal, or plant remain after a long period of time
- 17. Shins bright like a dimond
- 19. To call yours