Across
- 1. Person who works with engines/machines
- 5. Nostalgia
- 6. A Mars Day
- 8. Short for Habitat, like a house
- 11. To Destroy
- 12. Begin to grow
- 15. Overwhelmed
- 16. Limited to the Basics
- 19. Removed carbon dioxide and gives oxygen
- 20. Fixed amount of food
Down
- 1. Spacesuit
- 2. Network of organisms that need each other
- 3. Plant Scientist
- 4. Manure from humans
- 7. person without specialized knowledge
- 9. Act of moving quicker
- 10. Widespread
- 13. Third in level
- 14. Bad farming, drought, and wind
- 17. Remove clothing
- 18. Space vehicle