Across
- 3. a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
- 4. a spherical region that surrounds the solar system, that extends from the Kuiper Belt to almost halfway to the nearest star, and that contains billions of comets
- 7. a region of the solar system beyond the orbit of Neptune, believed to contain many comets, asteroids, and other small bodies made largely of ice.
- 8. Based on the belief that the sun is the center of the universe
- 9. A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
- 10. The periodic rise and fall of the level of water in the ocean
- 11. a small rocky body orbiting the sun
Down
- 1. the region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found
- 2. Caused by the tilt of Earth on its axis as it revolves around the Sun
- 5. A model of the universe in which Earth is at the center of the revolving planets and stars.
- 6. A meteoroid that has hit earth's surface.
