Across
- 2. energy of motion
- 7. height of an energy wave
- 8. bigger than a quarter smaller than a full
- 10. wave energy just passing through
- 11. variable the scientist manipulates, cause
- 12. Smallest unit of life
- 13. Particle in an atom with negative charge
- 15. matter and energy not created or destroyed
- 16. organelle for storage
- 17. In nature; fighting for resources
- 19. plants and others that make their own energy
Down
- 1. For every action; equal and opposite
- 3. developed three laws of motion
- 4. number of protons + neutrons in an atom
- 5. a way of saying non-living
- 6. particles have lots of energy and fly around freely
- 9. only liquid layer inside Earth
- 12. the type of change where molecules rearrange
- 14. When Earth blocks sunlight from striking moon
- 18. collection of food chains