Across
- 3. A visual representation that shows all or part of the Earth's surface with geographic features, urban areas, roads, and other details.
- 5. 24 hours occur.
- 7. an area of land, usually in very hot climates, that consists only of sand, gravel, or rock .
- 13. A small green area in a desert region, usually having a spring or well.
- 16. A large expanse of fairly flat dry land, usually with few trees.
- 17. The bed of a stream, river, or other waterway.
- 18. The imaginary great circle around Earth, which divides Earth into the northern and southern hemispheres.
Down
- 1. To provide protection from winds, waves, and currents.
- 2. A hollow sphere representing Earth and illustrated with the continents, seas, and islands.
- 4. A body of water forming an indentation of the shoreline, larger than a cove but smaller than a gulf.
- 6. The line about which a rotating body, such as the earth, turns.
- 7. A unit of measurement for planar angles, equal to a 360th of a full revolution. Symbol °
- 8. A tract of wet, spongy land.
- 9. A tract of land completely surrounded by water, and not large enough to be called a continent.
- 10. The place where a stream or river enters a sea or lake.
- 11. A vent in the earth's crust through which lava, steam, ashes, etc., are expelled.
- 12. A deep valley with steep sides, often with a stream flowing through it.
- 14. A narrow strip of land, bordered on both sides by water, connecting two larger bodies of land.
- 15. An artificial waterway for navigation, irrigation, etc.
- 19. A natural stream of water.