Across
- 5. the imaginary line of the center of the earth
- 6. an imaginary line around which an object spins
- 8. all light allowed through
- 9. all living and nonliving things in a area and there interactions
- 11. how plants eat
- 14. bending of light
- 17. an explosive eruption of waves and particles into space
- 18. back and forth motion of an object
- 19. energy due to motion
Down
- 1. any substance that damages the environment
- 2. the planet of the living
- 3. the ringed planet
- 4. some light allowed
- 7. no light allowed through
- 10. ability to do work
- 12. the path something takes to go around a planet or star
- 13. our light source
- 14. light bouncing off an object
- 15. a conclusion based on observations
- 16. a natural object that revolves around a planet