Across
- 4. An icy body that releases gas when close to the sun.
- 6. Known as the Red Planet.
- 11. A massive ball of gas emitting light and heat.
- 12. The movement of a planet around the sun.
- 13. A system of stars, planets, and other celestial objects.
- 14. What the sun radiates to warm the Earth.
- 19. A celestial body orbiting a star.
- 20. The spinning of a planet on its axis.
Down
- 1. The path a planet takes around the sun.
- 2. The closest planet to the sun.
- 3. Relating to the sun.
- 5. When one celestial body moves into the shadow of another.
- 7. The hottest planet in our solar system.
- 8. A natural satellite of a planet.
- 9. What the sun provides to Earth.
- 10. The force that keeps planets in orbit.
- 11. The star at the center of our solar system.
- 15. A rocky body orbiting the sun.
- 16. A sudden burst of energy from the sun.
- 17. A cooler, darker region on the sun's surface.
- 18. The third planet from the sun.
