Across
- 1. A round object that orbits the Sun but has not cleared other objects out of its path.
- 5. The force that pulls objects toward each other. It keeps planets in orbit around the Sun.
- 7. An icy object that orbits the Sun and forms a glowing tail when it gets close to the Sun.
- 9. Known for its large ring system.
- 11. A meteoroid that survives its trip through the atmosphere and lands on Earth.
- 13. The four large gas planets furthest from the Sun: Jupiter, Saturn, Uranus, and Neptune.
- 14. Known as the 'red planet'.
- 15. A small rock that orbits the Sun. It is smaller than an asteroid.
- 18. An object that orbits a planet.
- 19. Planet that rotates on its side.
- 21. The hottest planet.
- 23. The four rocky planets closest to the Sun: Mercury, Venus, Earth, and Mars.
- 25. The largest planet.
- 26. A region between Mars and Jupiter where many asteroids orbit the Sun.
- 27. The smallest planet.
Down
- 2. An imaginary line through the center of a planet that it spins around.
- 3. The number of planets in our solar system.
- 4. The Sun is mainly composed of this gas.
- 6. A large object that orbits the Sun, is round, and clears its path of debris.
- 8. A meteoroid that enters Earth’s atmosphere and burns up (a “shooting star”).
- 10. The Sun and all the objects that travel around it, including planets, moons, asteroids, and comets.
- 12. Planet furthest from the sun.
- 16. A doughnut shaped ring located beyond Neptune.
- 17. The only planet that supports life.
- 20. The spinning of a planet on its axis (causes day and night).
- 22. The only star in our solar system.
- 24. A small, rocky object that orbits the Sun, mostly found between Mars and Jupiter.
