| A | B |
|---|
| lava | molten rock under the earth's surface |
| landform | a shape on the earth's surface |
| glacier | great sheet of ice moving slowly down a slope |
| sediment | mud and soil particles small enough to be carried by water |
| weather | state of the atmospher with respect to heat or cold, wetness or dryness, calm or storm, clearness or cloudiness |
| axis | an imaginary line that runs from the North Pole to the South Pole |
| Tropic of Capricorn | latitude 23.5 degrees S that marks the southern boundary of the Tropics |
| tropical rain forest climate | annual rainfall of at least 100 inches; alternates between hot and rainy seasons |
| temperate climate | climate with a lack of extreme temperatures |
| Marine West Coast climate | cool, rainy summers and mild, rainy winters |
| continental climate | cold, snowy winters and summers either short and cool or long and hot |
| desert climate | less than 10 inches of rain a year. cactus and scrub bush grow, but little else |
| tundra climate | arctic or subarctic with a layer of permafrost below ground |
| elevation | height above sea level |
| rain shadow effect | exists when mountain peaks block rain from the leeward (direction wind is blowing) side |
| vegetation | plant life |
| tropical rain forests | marked by lofty broad-leafed evergreens forming a continuous canopy |
| evergreen forests | found throughout the temperate latitudes |
| humid temperate grasslands | grasslands that grow on flat or rolling plains in fertile areas suitable for growing grain |
| tropical grasslands | grasslands that grow in lowland areas of the Tropics |
| tundra | vast, treeless plain i the N. parts of North America, Asia, and Europe. Lichens, mosses, algae (wildflowers briefly) |
| culture | ways of life and beliefs of a people |
