Across
- 5. The outer layer, which looks like a white halo around the Sun
- 6. rocky objects
- 8. Meteoroids that pass through the atmosphere and are found on Earth's surface
- 10. Streams of electrically charged particles
- 12. The eruptions caused by gas on the Sun being heated to millions of degrees Celsius
- 13. Loose collections of ice, dust, and small rocky particles
- 17. A region beyond Neptune's orbit
- 18. The inner layer of the Sun's atmosphere
- 19. The inner planets
- 21. Huge loops of gas
- 23. A region between mars and Jupiter
- 25. A fuzzy outer layer formed by clouds of gas and dust
- 28. A region of very tightly packed gas where energy moves mainly in the form of electromagnetic radiation
- 29. Sun-centered model
- 30. The outer planets
- 31. trapping of heat by the atmosphere
- 32. The middle layer of the Sun's atmosphere
Down
- 1. Areas of gas on the Sun's surface that are cooler than the gases around them
- 2. Small bodies formed by rock and ice
- 3. system Consists of the Sun, the planets, their moons and a variety of smaller objects
- 4. Chunks of rock and dust smaller than asteroids
- 7. the solid inner core of a comet
- 9. oval shape
- 11. The process in which H atoms join to form He atoms
- 14. Beyond the Kuiper Belt, stretches more than 1,000 times the distance between the Sun and Neptune
- 15. A streak of light caused when a meteoroid enters Earth's atmosphere
- 16. the average distance between Earth and the Sun
- 18. Must be round, orbit the Sun, and have cleared its orbit around the Sun
- 20. Earth-centered model
- 22. the outermost layer of the Sun's interior
- 24. Orbits the Sun and is rounded, but has not cleared its path around the Sun
- 26. central region
- 27. thin disk of small particles of ice and rock