Advanced Earth Day-themed Crossword Puzzle
Listed Items
- 1.  Often used in place of glass, metal, and wood
 
- 1.  The presence of harmful chemicals in the air, water, or land
 
- 2.  An area built with glass or plastic walls and roof to absorb and retain heat from the sun
 
- 3.  Found in all living organisms
 
- 4.  The average weather of a region over a long period of time
 
- 5.  Area that offers necessary resources
 
- 6.  The physical world and all its phenomena, including plants and animals
 
- 7.  A layer of gases that surrounds a planet or moon
 
- 8.  A colorless, tasteless, odorless liquid
 
- 9.  The elimination of forests or woodlands
 
- 10. Using materials again and again
 
- 11. In danger of vanishing
 
- 12. A mixture of gases that forms the Earth's atmosphere
 
- 13. Produced by a living organism
 
- 14. A large area of land with many trees and other plants
 
- 15. A light, gentle flow of air
 
- 16. A gas which absorbs harmful UV radiation
 
- 17. Fith largest planet in the solar system
 
- 18. Decomposing organic material used to fertilize plants and improve soil structure
 
- 19. A structure of interconnected branches, twigs, and leaves that provide a habitat for many species of animals and plants