Across
- 3. Resistance a surface encounters when moving over another
- 7. Hottest planet
- 10. the shape of a comet's or planet's orbit
- 13. any natural body outside of Earth's atmosphere
- 15. Gas planet with visible rings
- 16. Made up of a nucleus of ice and dust
- 18. The largest planet
- 20. Bowl shaped cavity made on the surface of a planet or moon
- 22. planets that are also called terrestial
- 23. Small, rapidly moving meteor burning up in Earth's atmosphere
- 25. Two-thirds of the surface covered by water
- 26. Small body of matter from outer space that enters Earth's atmoshpere
Down
- 1. Great dark spot
- 2. A natural force of attraction exerted by one object on another object
- 4. The spinning of a planet on its axis
- 5. region beyond Neptune that contains comets, ateroids, an other bodies made of ice
- 6. Planets made mostly of gas
- 8. Another word for a moon orbiting a planet
- 9. Axis tilted on its side
- 11. Of or from outside of Earth
- 12. shell of cometary bodies far beyond the outermost planets
- 14. The elliptical path of the planets
- 17. Closest planet to the Sun
- 19. The envelope of gases surrounding the Earth or another planet
- 21. The period of time it takes a planet to go around the Sun
- 24. A meteor that survives the Earth's atmosphere and lands on the ground