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21 Cards in this Set
- Front
- Back
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Energy from the sun. |
Solar Energy |
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One complete spin of earth on its axis. |
Rotation |
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Earth's one trip around the sun (one year). |
Revalution |
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Measure the distance north or south of earth's equator, but run east and west. |
Latitude |
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An area of regions close to the equator. |
Tropics |
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Water without salt (we can drink it). |
Freshwater |
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Large areas of slow-moving ice. |
Glaciers |
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Water that is found in earth's streams, rivers, and lakes. |
Surface Water |
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Water that falls to earth's surface as rain, snow, sleet, or hail. |
Precipitation |
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Water found bellow earth's surface. |
Ground Water |
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An invisible gas that water also occurs in. |
Water Vapor |
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The movement of water from earth's surface to the atmosphere and back. |
Water Cycle |
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The three water problems: |
Water pollution, floods, and lack of water. |
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The three water benefits: |
Providing food (crops), provides energy, and recreation. |
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Shapes on the planet's surface. |
Landforms |
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Large landmasses. There are seven on earth. |
Continents |
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A theory that suggests that earth's surface is divided into a dozen of slow moving plates, or pieces of earth's crust. |
Plate Tectonics |
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Magma that reaches earth's surface. |
Lava |
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Sudden, violent movements of earth's crust. |
Earthquakes |
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The process by which rock is broken down into smaller pieces. |
Weathering |
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The movement of sediment from one location to another. |
Erosion |
