| A | B |
|---|
| axis | an imaginary line running through the center of the earth between it poles |
| basin | a large or small depression, or low spot in the land surface. |
| bayou | small, marshy creek or river that is an outlet ortributary to another body of water. |
| climate | the term used for the weather patterns that an area or region typically experiences over a long period of time |
| degree | a line or point on the earth or in the celestial sphere whose position is fixed by its angular distance measured in degrees from the equator or a given meridian |
| delta | a triangular section of land at a river's mouth that looks like the Greek letter delta ( ). |
| equator | a line of latitude that circles the earth at an equal distance from the North Pole and the South Pole. The 0 degree latitude line. |
| erosion | the wearing away of the earth's surface by wind, flowing water , or glaciers. |
| fall line | an imaginary line connecting points where highlands meet a coastal plain at which rivers from the highlands drop suddenly as waterfalls |
| fault | breaks in the earth's crust that occur when folded land cannot be bent any further |
| hemisphere | a half of the earth |
| humidity | the amount of water vapor in the air |
| hurricane | a destructive tropical strom that forms over the Atlantic Ocean, usually in late summer and early fall, with winds of at least 74 miles (119 km) per hour. |
| landform | the natural features of the earth's surface |
| levee | earthen embankments that protect surrounding areas from flooding |
| legend | Key that explains the meaning of symbols and colors used on a map. |
| peninsula | a piece of land that extends from a continent and that is mostly surrounded by water. |
| precipitation | the falling of moisture to the earth in the form of rain, sleet , hail, or snow. |
| plain | a flat or gently rolling area of land with few changes in elevation |
| revolution | the earths yearly trip around the sun. |
| rotation | the turning of the earth on its axis |
| weather | condition in one place for a short period of time |
| tornado | violent windstorm with rotating winds and a funnel-shaped cloud |
