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Earth Sci Topic 4
| Question | Answer |
|---|---|
| Axis of rotation | an imaginary line through earth from the north to the south geographic poles, about which Earth rotates |
| constellation | a group of stars that form a pattern and are used to help people locate celestial objects |
| Coriolis effect | the deflection of all moving particles of matter at earth's surface to the right in the Northern Hemisphere and to the left in the Southern Hemisphere, which provides evidence for Earth's rotation |
| eclipse | the complete or partial blocking of light when one celestial body moves into the shadow of another celestial body |
| Foucault pendulum | a freely swinging pendulum whose path appears to change in a predictable way thus providing evidence for Earth's rotation |
| geocentric model | an early concept of celestial objects and their motions in which all celestial objects revolved around Earth, which was stationary and was the center of the universe |
| heliocentric model | the modern concept of celestial objects and their motions, in which a rotatin Earth and other planets revolve around the sun |
| local time | time based on the rotation of the Earthas reflected in motions of the sun in the sky |
| phases of the moon | the varying portion of the lighted part of the moon visible from Earth |
| tides | the cyclic rise and fall of the ocean water on Earth caused by the gravitational attractional of the moon and to a lesser degree the sun |
| time zone | One of the 24 north-south trending zones that are 15 degrees of longitude wide, which keep the same standard time as the central meridian of the zone. |
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klkaufman
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