Across
- 2. all natural objects in space are called
- 5. the system of stars our solar system is a part of
- 9. Orion, the Big Dipper, and the Little Dipper are all examples of _____.
- 10. Who was the first man to step onto the moon?
- 11. the Red Planet
- 12. It takes the moon about one _____ to orbit Earth.
- 15. large storm on Jupiter's surface
- 18. earth's closest star that produces light and heat energy
- 19. what Saturn's rings are made up of
- 20. What makes the seasons?
- 22. Earth's natural satellite
- 23. a hole on the surface of a moon or planet made by asteroids and meteoroids have hit it
- 25. only planet tipped on its side
- 26. Mercury, Venus, Earth, and Mars all have this common characteristic
- 27. the hottest and brightest planet
- 29. number of planets in our solar system
- 30. the sun's _____ helps all the planets of the solar system orbit it
Down
- 1. planet that is 300 times larger than Earth
- 3. How do we account for the extra 1/4 day that it takes Earth to orbit the sun?
- 4. planet with the longest orbit around the sun
- 6. the earth rotates on its _____
- 7. a tool that tells time by using the sun
- 8. Earth is different from all other planets because it is _____
- 13. What does the gravity of the moon pull that is on Earth?
- 14. a giant ball of hot, glowing gas
- 16. We send ______ to other planets and places that humans cannot explore
- 17. another name for the outer planets
- 21. the first four planets in the solar system
- 24. The moon _____ the sun's light
- 28. smallest planet in the solar system