Across
- 2. ______ cannot live on Mercury
- 3. _______ were on the test flights to mercury
- 5. ____ is the closest planet to Mercury
- 7. one of the rockets that went up to space
- 10. This planet has no _____.
- 11. A probe that went to mercury
- 13. Mercury is ____.
- 14. What this crossword is
Down
- 1. Mercury is the smallest planet in the ________.
- 4. The closest star to the planet
- 6. Mercuries core is made out of ____.
- 8. one thing this planet cannot have due to no water, food and oxygen
- 9. __ human has ever stood on mercury
- 10. an animal that went to mercury
- 12. the second planet from Mercury
- 13. Mercury is named after a ___.