Science solar system study guide
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14 terms
Terms | Definitions |
|---|---|
 mass | how much matter there is in an object |
| weight | how much gravity pulls you or something down to the furface of the earth. |
| solar eclipse | when the shadows of the moon fulls on the Earth |
| gravity | natural force that causes objects to move toward the center of the earth OR a force that holds us to the Earth. |
| seasons | The four seasons of the year are spring, summer, autumn and winter |
| tilt | slope;slant; lean; tip: |
| phases of the moon | New moon, Waxing Cresent, First Quater, Waxing Gibbous, Full moon, Wanning Gibbous, Third Quater and Wanning Cresent. |
| atmosphere | a layer of air all around the earth |
| equator | an imaginary line around the Earth forming the great circle that is equidistant from the north and south poles |
| rotation | the act of rotating as if on an axis |
| revolution | a single complete turn (axial or orbital) |
| orbit | The path of the earth or any one of the planets around the sun. |
| northern or southern hemisphere | northern or southern half of the earth |
| planets in the solar system | Mercury, Venus, Earth, Mars, Jupitar, Saturn, Uranus, Neptune and Pluto |
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