Across
- 1. Earth has one of these. It orbits the Earth.
- 4. This is the only star in the Milky Way.
- 5. This icy object is made out of rock and dust.
- 6. This area of our solar system separates the inner planets from the outer planets.
Down
- 1. This object is a meteoroid when it reaches Earth.
- 2. Our solar system has eight of these. You are on one now.
- 3. This planet is the closest planet to the sun.
- 4. This is a huge ball are made of plasma.