Across
- 2. when a a place where the atmosphere and hydrosphere of earth has living organisms
- 5. When heat is getting transferred through something
- 6. solar system beyond the orbit of Neptune
- 9. when earth makes a full rotation around the sun.
- 11. When something is shiny.
- 12. another word for force that starts with a p
- 14. fusion Is the process when two light atomic nuclei combine to form one.
- 16. your birthday happens once a ----
- 19. irregularly shaped slab of rock that makes up the crust and upper mantel.
- 21. mineral composed of mostly silicon dioxide
- 22. 5th planet from the sun
- 23. Layer The layer of the atmosphere that protects us from harmful UV rays.
- 25. horizontal axis.
Down
- 1. when something gets worn down over time.
- 3. its an ingredient found in sunscreen that is on the periodic table
- 4. Half of a planet divided by the equator
- 7. solar panels are an example of --------- ------
- 8. Type of rock that are compacted together over time.
- 10. in the Earth's crust for millions of years
- 13. how we have seasons
- 15. the light used in tanning beds.
- 17. How compacted a substance is
- 18. thing lava comes out of.
- 20. The time or day (twice a year when the sun crosses the celestial equate.
- 24. a system with millions of stars get held together by gravity.