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Geography ch. 2
| Term | Definition |
|---|---|
| Sun | gives us energy, heat, and light. |
| Axis | imaginary from north pole to south pole. |
| Revolution | complete trip around the sun 365 and 1/4 days |
| Is there energy inside the Earth? | Yes |
| Layers of Earth | Core, Mantle, Crust |
| Core | two sections for 2,100 or so miles.\ |
| Mantle | 1,800 miles |
| Crust | 3 - 46 miles deep |
| Largest hole in Earth? | 8 miles deep |
| Farthest depth a human has gone in Earth? | 2, 5 miles |
| 1 league equals? | 5.5 kilometers |
| 1 kilometere equals | 6 miles |
| 70% of Earth equals? | Water |
| Atmosphere | thin layer of gases/air all around us |
| Equinox | when day and night are at equal length |
| Tilt | we tilt 23.5 degrees on our axis |
| Summer Solstice | sun points on us - June 21/22 |
| Winter Solstice | sun points away from us - December 21/22 |
| Higher elevation equals | colder |
| Wind and Ocean Currents | affect our tempatures |
| Weather | state of our atmosphere AT THE TIME |
| Climate | average weather in a region OVER TIME |
| Climate Zones | different time zones because of sun |
| Tectonic plates | earths crust made up of 16 of these, moving due to heat in Earth. |
| faults | rocks of a crack in the Earth moves |
| earthquakes | plate movement along fault lines |
| tsunami | giant ocean wave caused by volcanic eruptions |
| Weathering | when the weather wears away at something |
| Erosion | when weathered bits of rock are moved around |
| Changing Landforms | when GOD decides to change His creation |
| Human Actions | when WE decides to change His creation |
| continental shelf | underwater plain boarding a continent |
| trenches | long, narrow, steep - sided cut in ground |
| 4 Oceans are the largest | Pacific, Atlantic, Indian, Arctic |
| water cycle | when water changes into liquid vapor |
| Condensation | water vapor becomes a liquid or a solid |