Across
- 5. Gravity on a planet depends on the world's ___
- 6. Balloon filler that won't float on the moon
- 7. Space program that landed on the moon
- 8. __ million people share your birthday
- 10. The far side of the moon is not
- 12. The layer of gases surrounding a world
- 14. This hardened and created dark spots
- 15. These were left in the moon's dust
Down
- 1. Without this in the air, dust returns to the ground quickly
- 2. how things fall without gravity
- 3. The moon was created 4.5 ___ years ago
- 4. Number of days it takes to fly to the moon
- 9. The brighter reflection comes from - Earth or moon
- 11. The moon has too little to hold an atmosphere
- 13. How astronauts prepare for bed