Advanced Earth Day-themed Crossword Puzzle
 
Listed Items
- 1.  A current of air blowing from a particular direction
- 1.  Clear, colorless substance that covers over 70% of Earth's surface
- 2.  A large area of land with a lot of trees and plants
- 3.  A type of renewable energy
- 4.  The state of the atmosphere in a given region
- 5.  Harmful substances released into the air, water, or soil
- 6.  A resource that can be used over and over
- 7.  Derived from living sources
- 8.  In danger of becoming extinct
- 9.  To use something again after it has been used up
- 10. Third planet from the sun
- 11. The natural world and its surroundings
- 12. A material that is used to make toys and containers
- 13. A place where plants are grown in an atmosphere that is warm and humid
- 14. A color between blue and yellow
- 15. A mixture of gases that surrounds the Earth
- 16. A tall woody plant with a single trunk
- 17. The natural home of an animal or plant