Solar System Review

4. to spin on an axis
11. A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
12. to move around another object in a circular path
16. Collection of asteroids and other debris located between Mars and Jupiter
17. Closest planet to the Sun
18. A region of the solar system that is just beyond the orbit of Neptune and that contains small bodies made mostly of ice
21. Mercury, Venus, Earth, Mars
22. a small, rocky body that travels through space
24. Jupiter, Saturn, Uranus, Neptune
26. A model of the universe in which Earth is at the center of the revolving planets and stars.

1. the sun and all of the planets and other bodies that travel around it
2. Second-largest planet in Solar System; large ring systemq
3. Dwarf planet found in the Asteroid Belt
5. A loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit.
6. All of space and everything in it
7. Farthest-out major planet
8. A collection of stars, dust, and gas bound together by gravity
9. A meteoroid that passes through the atmosphere and hits Earth's surface.
10. a spherical region that surrounds the solar system and contains billions of comets
13. Rings, the Great Red Spot, and many moons.
14. A force of attraction between objects that is due to their masses, and that increases in proportion to their masses
15. Planet, 1930-2006
19. A model of the solar system in which Earth and the other planets revolve around the sun
20. Seventh planet out from the Sun
22. "The Red Planet," with four moons and an iron-rich crust
23. "Earth's Twin," except for the enormous air pressure and toxic atmosphere
25. any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)