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WorldGeography2Vocab
Vocab for Chapter 2
| Question | Answer |
|---|---|
| solar system | the sun and the group of bodies that revolve around it |
| planets | major bodies that orbit a star |
| moons | smaller objects that orbit the planets |
| satellite | a body that orbits a larger body |
| solar energy | energy from the sun which reaches earth as light and heat |
| rotation | one complete spin of earth on its axis |
| revolution | one elliptical orbit of earth around the sun |
| tropic of capricorn | the parallel 23 1/2 degrees SOUTH of the equator |
| tropic of cancer | the parallel 23 1/2 degrees NORTH of the equator |
| arctic circle | parallel 66 1/2 degrees north of the equator |
| antartic circle | the parallel 66 1/2 degrees south of the equator |
| tropics | warm, low altitude areas near the equator |
| solstice | the time that earths poles point at the greatest angle toward or away from the sun |
| polar regions | high latitude, cold regions around the north and south poles |
| equinox | the time when both earths poles are at a 90 degree angle from the sun and the suns direct rays strike the equator |
| atmosphere | the envelope of gasses that surround a planet like earth |
| lithosphere | solid crust of the earth |
| hydrosphere | earths water in all its forms |
| biosphere | the part of earth that includes all life forms |
| environment | combination of earths four spheres, including all of the biological, chemical, and physical conditions that affect life. |