Across
- 2. a ball of ice and dust floating in space
- 4. a group of stars in the night sky that form a shape
- 7. a meteor crashing into Earth: a ________ star
- 10. the planet we live on
- 12. the red planet
- 14. a tool that people use to observe planets
- 18. the biggest planet
- 19. a collection of billions of stars
- 22. a planet named after the Roman god of the sea
- 23. a person who studies space
- 27. a planet famous for its rings
- 31. a time when the moon blocks the sun
- 32. a rock floating in space
- 33. a cloud of gas and dust in space
Down
- 1. a planet that begins with U
- 2. a hole in the surface of the moon
- 3. a large object that orbits Earth
- 5. Earth _______ on its axis
- 6. the hottest planet
- 8. the force that keeps you on Earth
- 9. a large object that moves around a star
- 11. the name of our galaxy: the _____ way
- 13. a hot glowing ball of gas in space
- 15. the planets _____ around the sun
- 16. the sun and the planets: the _____ system
- 17. dark place on the sun's surface: sun ____
- 20. space and everything in it
- 21. a vehicle that transport people into space
- 24. our star
- 25. the path a planet takes around the sun
- 26. a time when many meteors strike Earth: a meteor ______
- 28. a person who travels to space
- 29. the shapes of the moon during a month
- 30. a place where gravity is so strong not even light can escape: a _____ hole
