| A | B |
|---|
| geography | is the study of earth in all its variety |
| human geography | learning about the earths plants water people land and animals |
| physical and human | the 2 characteristics geographers study about a place |
| maps and globes | 2 main tools geographers use to study people and places |
| global positioning system | group of satelites that travel around the earth and can be used to tell the exact locations on earth (gps) |
| geographic information systems | is a special computer software that helps geographers gather many types of information about a place (gis) |
| Analizes data and creates maps | gis uses |
| written records and artifacts | are fossils and tools scientists use to learn more about early times |
| the sun the planets and other small bodies of water | what forms our solar system |
| venus mercary mars and pluto | planets that are solid |
| jupiter saturn neptune and uranus | planets that are huge balls of gas |
| atmosphere | the the layer of air surropunding the earth |
| 99 percent | nitrogen and oxygen make up how much of the atmosphere |
| rotates and spins on its axis | earth |
| axis | is an imaginary line that runs up the center of the earth |
| summer solstice | on or about june 21, north pole is tilted toward the sun |
| winter solstice | around december 2, north pole is tilted away from the sun |
| midway solstice | spring, summer |
| core | earth's center, inner core solid & outer is liquid |
| mantle | surrounds the core a layer of rock 1800 miles thick |
| uppermost layer | 31 to 62 miles deep |
| earth's plates | huge rock slabs can move to create volcanic eruption or earthquakes |
| faults | cracks in earth's surface where earthquakes happen |
| weathering | breakdown of surface rock by water, frost, chemicals and plants |
| erosion | wearing away or moving material caused by wind, water, and ice being greatest factors |
| landforms | moutains, foothills, plains, platequs valleys canyons isthmus penensula or islands |
| climate & resources | why people decide to live in an area |
| earth's surface | 70% of salt water |
| strait | narrow body of water between 2 pieces of land |
| channel | wider body of water between 2 pieces of land |
| delta | deposited soil at the mouth of a river |
