Across
- 2. renewable resource
- 5. carrier of genetic information
- 7. subatomic particle with a charge of negative electricity
- 8. tendency to remain unchanged
- 10. push or pull on an object
- 11. physics concerned with the properties of sound
- 13. science of numbers
- 14. reason why objects fall
- 15. c^2 = a^2 + b^2
- 18. K19
- 19. not a whole number
- 20. distance an object travels in a given unit of time
Down
- 1. wireless earphones
- 3. Sheldon's job
- 4. pH 10
- 6. study of celestial objects and space
- 9. gradual development of something
- 12. a form of engineering dealing with all things that moves
- 16. three states of matter: gas, liquid and ____
- 17. machine capable of automatic actions