Across
- 2. The fourth planet, often called the "Red Planet."
- 3. The biggest planet in our solar system.
- 5. It is a very small, icy dwarf ___.
- 7. A big, round thing in space that goes around the sun.
- 9. The second planet from the Sun, often called the "Morning Star."
- 12. The smallest planet and the one closest to the Sun.
- 15. This planet has beautiful, large rings made of ice and rock.
- 17. The air we breathe; not much of this in space.
- 18. The force that keeps you on the ground and holds planets in orbit.
- 20. A place in space where gravity is so strong that not even light can escape. (2 words)
- 21. A vehicle that carries people into space and comes back to Earth. (2 words)
- 22. The big, hot, yellow star in the middle of our solar system.
Down
- 1. A machine or moon that orbits a planet.
- 4. The sun is one of these; they look like small, bright lights at night.
- 6. Special clothes worn by astronauts to keep them safe in space.
- 8. This object goes around Earth at night.
- 10. The planet where we live.
- 11. The seventh planet, it is light blue and spins on its side.
- 13. A person trained to travel in space.
- 14. The Sun, planets, and everything that orbits them. (2 words)
- 16. A small, rocky object that orbits the Sun.
- 19. The eighth and coldest large planet.