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9 Cards in this Set
- Front
- Back
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Why do we only see one side of the moon?
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The moon has a synchronous rotation and both the Earth and moon are in constant motion.
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How do we believe the moon was formed and what are some of its structures?
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The current theory is that a Mars-sized object collided with Earth as Earth was still forming. The collision was so violent that part of Earth's mantle was blasted into orbit around Earth and formed the moon. The moon is covered with craters and is basically made of rock similar to rocks found on earth.
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What is the difference between a waxing and a waning moon?
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A waxing moon is when the amount of moon's lighted surface seen on Earth increases. A waning moon is when the amount of the moon's lighted side that can be seen becomes smaller.
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Why don't we have eclipses every month?
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The moon is inclined at about a 5 degree angle.
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A)What phase is the moon in during a solar eclipse?
B)Lunar eclipse? |
A)New moon.
B)Full moon. |
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What is the difference between rotation and revolution?
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Rotation is Earth spinning on its axis. Revolution is Earth rotating around the sun.
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Why do we have seasons?
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It's because the Earth is tilted as it does a revolution.
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Why do we have night and day?
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Earth spins on it's axis and as it does, the sun hits half of the Earth. This is day. The other side that is dark is experiencing night.
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What are an equinox and a solstice and when do they occur?
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An equinox is the days when Earth is not tilted toward the sun. A solstice is the days when Earth is most tilted toward the sun. Equinoxes occur at about February 25th and October 15. Solstices occur at about June 22nd or December 22nd
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