Across
- 3. Small meteoroid that burns upon entry of Earth's atmosphere
- 6. The amount of mater in an object or substance
- 9. The region of interplanetary space between the inner and outer planets where most asteroids orbit around the Sun
- 11. The law that says every object in the universe attracts every other object
- 15. A curved path followed by a satellite as it revolves around an object in space
- 16. A natural chunk of rock or dust existing outside Earth's atmosphere
- 17. Any of the planets Jupiter, Saturn, Uranus, and Neptune whose orbits lie beyond the asteroid belt
Down
- 1. The four largest and brightest moons of Jupiter discovered by Galileo
- 2. Remains of meteoroids that strike the surface of Earth or the Moon
- 4. the force of attraction that pulls objects toward each other
- 5. The Sun together with the group of planets that are held by its attraction and revolve around it
- 7. The luminous celestial body around which Earth and other planets revolve, and receive heat and light
- 8. Any of the large celestial bodies that revolve around the Sun in the Solar System
- 10. Any of the rocky, terrestrial planets of Mercury, Venus, Earth, and Mars whose orbits range is within the asteroid belt
- 12. Piece of rock or metal made up of material similar to that which formed the planets that orbit the Sun
- 13. Consists primarily of ice, dust, and rock whose orbit is a long narrow eclipse
- 14. Earth's natural satellite that revolves around Earth from west to east