Across
- 2. one of the rocky objects in space revolving around the sun that are too small and too numerous to be considered planets
- 7. term describing a model of the universe in which earth is at the center if the solar system
- 8. a region where many small objects orbit the sun and that stretches from beyond the orbit of Neptune to about 100 times the earth's distance from the sun
- 10. a loop of gas connecting to sunspots
- 12. a spherical region of comets that surrounds the solar system
- 13. the middle layer of the suns atmosphere
- 14. the layer of the sun that lays just outside its core
- 17. one of the building blocks that formed the planets
- 18. term describing a model of the universe in which the sun is in the middle of the solar system
- 20. the name given to the outer planets
Down
- 1. the inner layer of the suns atmosphere that gives off its visible light; the suns surface
- 3. an object that orbits the sun that has not cleared its area of orbit
- 4. a meteor that passes the atmosphere and hits earths surface
- 5. name given to the inner planets
- 6. a chunk of rock or dust in space, generally smaller than an asteroid
- 9. the trapping of heat near a planets surface by certain gases in the planets atmosphere
- 11. a streak of light in the sky produced by the burning of a meteoroid in earths atmosphere
- 15. the continuous flow of charged particles from the sun which permeates the solar system.
- 16. oval shape
- 19. a loose collection of ice and dust that orbits the sun typically in a long narrow orbit