Across
- 1. The cold, dark space where there are many stars and planets.
- 3. The closest star to Earth, and the source of our light and warmth.
- 4. The force that pulls objects toward each other, like what keeps us on Earth.
- 5. A natural satellite that orbits the Earth.
- 7. The largest planet in our solar system.
Down
- 1. The big ball of hot gas in the center of our solar system.
- 2. A planet known as the "Red Planet."
- 3. The planet with beautiful rings around it.
- 5. The closest planet to the Sun.
- 6. A rocky object that orbits the Sun, and some are found in the asteroid belt.