Across
- 3. one of the seven main land masses on Earth.
- 4. depression in the Earth between hills
- 5. landmass that forms as tectonic plates interact with each other
- 7. flat, smooth area at a low elevation
- 8. large body of salt water that covers most of the Earth
- 10. area of land that receives no more than 25 centimeters (10 inches) of precipitation a year.
- 12. land that rises above its surroundings and has a rounded summit, usually less than 300 meters (1,000 feet)
- 15. area of tall, mostly evergreen trees and a high amount of rainfall
- 18. all weather conditions for a given location over a period of time
- 19. body of land surrounded by water
Down
- 1. tropical ecosystem filled with trees and underbrush
- 2. piece of land jutting into a body of water.
- 6. cold, treeless region in Arctic and Antarctic climates
- 9. a group of closely scattered islands in a large body of water
- 11. narrow passage of water that connects two larger bodies of water
- 13. shallow lake formed by a retreating glacier
- 14. large part of the ocean enclosed or partly enclosed by land
- 16. narrow strip of land connecting two larger land masses
- 17. large stream of flowing fresh water
