Across
- 4. The Earth is heavier that the moon. The moon is________ than the Earth.
- 5. The earth is___________ than the moon.
- 7. The ________ is the biggest thing in the solar system.
- 8. The Nile River is the ________ river on the earth.
- 9. Neil Amstrong was the first man to land on the ______.
- 10. Captain Yang Liwei became the _________ Chinese man in space.
- 11. Yuri Gagarin was the first man in _________
Down
- 1. The moon is lighter that the Earth. The Earth is __________ than the moon.
- 2. The second planet is the ________ planet.
- 3. The sun is the ________ thing in the solar system.
- 5. The sun is________ than other stars.
- 6. There are eight________in the solar system.
