Across
- 3. the study of how animals behave
- 4. the place for experiments
- 7. draws objects towards it center
- 8. change with time of the position of a body
- 13. a natural inorganic element
- 15. the study of chemicals, elements and substances
- 16. the movement of electric charges
- 19. the study of living organisms
- 20. the measure of the amount of matter in a body
- 22. is a subject
- 23. helps objects stay afloat
Down
- 1. the force exerted by magnets
- 2. information collected using specific methods
- 5. the study of the universe
- 6. an indisputable observation
- 9. and individual living thing
- 10. physical substance in general
- 11. breaking down of rocks
- 12. the capacity to do work
- 14. the study of matter and energy
- 17. the process of movement
- 18. a group of atoms bonded together
- 21. a push or pull