Across
- 2. the study of the universe
- 5. happends when the planet tilts 2 times a year
- 6. the center of mass of two or more bodies
- 7. when two bodies split into 2
- 8. planet is in orbit closest to the sun
- 10. smaller nuke merge together
- 12. the tide after a quarter moon
- 14. solar radiation
- 17. motion of body such as planet or moon
- 18. a turning or spinning of the earth
- 19. transfer from heat to a substance
- 23. a rotation of the Earth's axis
- 24. waves from the sun
Down
- 1. burning
- 3. charged particles
- 4. when a planet Is in orbit
- 9. happends 2 times a year
- 11. when a fluid is being heated
- 13. spectrum complete range of waves
- 15. planets made out of gas
- 16. tide after a full moon
- 20. large cloud of dust
- 21. a wobbling on the Earth's axis
- 22. using light to grow plants
- 25. transfer of energy by electromagnetics