Across
- 1. a natural satellite of a planet
- 2. a small body of ice, rock, and cosmic dust loosely packed together
- 3. a large, gaseous planet of the outer solar system with no known solid
- 6. a very small, rocky body found in space
- 9. the elliptical motion of a body as it travels around another more massive body in space
- 11. a meteoroid that reaches Earth’s surface without burning up completely
- 12. the spin of an object in space
- 14. any human made object placed in orbit around a body in space
- 18. the elliptical PATH an object takes in space while revolving around another object
- 19. the force that causes an object to follow a curved path
- 20. the force that accelerates a rocket
Down
- 1. a bright streak of light caused when a meteoroid or comet dust burns up in the atmosphere
- 4. a medium sized star; the center of our solar system
- 5. a small, dense, rocky planet similar to Earth
- 7. the speed and direction a rocket must have in order to orbit Earth
- 8. attracting force due to mass or rotation
- 10. smaller body that orbits around a larger body
- 13. body that orbit around the sun or a star and does not produce its own light
- 15. a small, rocky body that revolves around the sun
- 16. the speed and direction a rocket must have in order to completely break away from a planet’s gravitational pull
- 17. mixture of gases that surrounds a planet