Advanced Earth Day-themed Crossword Puzzle
Listed Items
- 1. A large perennial plant with a trunk and branches
- 2. Third planet from the sun
- 3. A molecule that is toxic to many organisms
- 4. A current of air blowing from a particular direction
- 4. Clear, colorless substance that covers over 70% of Earth's surface
- 5. Earth's main source of energy
- 6. Able to be used again and again
- 7. A combination of decaying organic materials used to improve soil fertility
- 8. The geographical area where a particular species is located
- 9. In danger of becoming extinct
- 10. The natural world and its surroundings
- 11. A transparent building that uses the sun's heat and light to grow plants
- 12. A material that is used to make toys and containers
- 13. A mixture of gases that surrounds the Earth
- 14. A substance found in coal, diamonds, and graphite
- 15. A gaseous composition that surrounds a planet
- 16. Derived from living sources
- 17. A large area of land with a lot of trees and plants