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10 Cards in this Set
- Front
- Back
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Planets and moons move through space how..?
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Rotation and Revolution
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Which two forces keep planets in motion around the sun?-- Explain
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Gravity; Inertia
Gravity pulls in Inertia pulls out |
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What would happen if one force overpowers the other force--Gravity vs. Inertia; Inertia vs. Gravity
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---------
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It takes 24 hours, 12 hours, 6 hours or 3 hours for a complete day-night cycle.
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24 hours
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What causes the change in the seasons on Earth?
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The earth's axis and revolution around the sun
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Describe where the earth is tilted during a season change and which direction it goes..
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Counter-clockwise
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How do seasons affect the length of day and night in the northern hemisphere?
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depending on the tilt of the earth, it affects the northern hemisphere. The tilt of the earth and the sun hitting the earth affects it.
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Define Solstice
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Two solstice: summer and winter.
Earth's hemisphere is tilted most towards or away from the sun. |
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Define Equinox
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Two Equinox: Vernal and Autumnal
Earth's hemisphere is tilted neither toward or away from the sun. |
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main factor causes the phases of the moon?
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The reflection of the sun to the surface of the moon-- light from the sun that casts onto the moon
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