Across
- 4. Force that pulls objects together.
- 6. Also called terrestrial Planets.
- 8. A small rocky object floating in space.
- 10. Cloud of gas and dust in space. What the solar system formed from.
- 12. Building blocks of planets.
- 13. A celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.
- 16. Also called Jovian Planets.
Down
- 1. The tendency of an object to resist a change in its motion.
- 2. A small rocky object that hit the surface of the Earth
- 3. The force of gravity on a person or object on the surface of a planet.
- 5. A large rocky body orbiting the sun.
- 7. What the inner planets are made of.
- 8. The measurement of the amount of matter “stuff” in an object.
- 9. Path in which planets and moons travel around a star.
- 11. Theory on how the universe started from a single point.
- 14. A small rocky object entering Earth's atmosphere
- 15. What the outer planets are made of.