Across
- 1. shows that Earth is the center of the Solar System
- 3. hydrogen atoms joined together to form helium
- 5. model that shows the planets move on small circles that move on bigger circles
- 7. solar flares increasing in the number of particles reaching Earth's upper atmosphere
- 8. inner layer of the sun's atmosphere
- 10. central region of the sun
- 11. shows the planets and their moons rotating around the suns
- 12. electricity charged particles that can extend for miles
- 14. outer layer that looks like a white halo
- 15. reddish loops of gas that usually appear in groups
Down
- 2. dark spots on the sun's surface
- 4. magnetic energy released from sunspot regions
- 6. color sphere or middle layer
- 9. middle layer of the suns interior
- 13. outermost layer of the sun's interior
