Across
- 2. a Martian day
- 4. a specific diet of plant-based foods
- 5. place to grow plants
- 6. skill and job needed on Mars
- 7. grammar expectation for an abbreviation
- 10. how people on earth protect their skin from damaging rays
- 13. waters of the earth's surface
- 14. force or weight on a planet
- 17. structure which organizes ideas and information
- 18. to repurpose and reuse, especially on Mars
- 19. layer of the surface of the earth
Down
- 1. a group of people creating a new environment
- 3. internal heat of the earth
- 8. the vapors and gasses surrounding earth
- 9. reddish coating formed over iron over a period of time
- 11. dangerous energy of high energy particles
- 12. half of the earth
- 15. the Red Planet
- 16. element or feature of informational text