Across
- 3. Mercury,Venus,Earth,Mars,...
- 7. The astronauts live in there.
- 9. Children are playing with them.
Down
- 1. Vehicle that can travel through space space.
- 2. Sun.
- 4. Or cosmonaut.
- 5. Is the star at the center of the Solar System.
- 6. Is the only natural satellite of the Earth.
- 7. Moon.
- 8. We live on it.