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16 Cards in this Set
- Front
- Back
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How does the sun produce energy? |
Through a process called nuclear fusion |
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Why is the equator warmer than the poles? |
It is directly in the suns rays |
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Why do we have seasons? |
Earths Rotation |
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What is a solstice and what happens in a Dec. Solstice? |
A solstice is a day when Earths rotation axis is the most toward or away from the sun.In the Dec. solstice the Northern hemisphere has winter and the southern has summer |
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What is the northern hemisphere having when the southern has summer? |
Winter because of Earths rotation |
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What is happening during a spring tide? |
They happen during the full moon and new moon |
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What happens during a solar eclipse? |
The moon appears to cover the sun completely and it last no longer then 7 minutes |
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What Eclipse would you see in the Earths penumbra? |
Lunar Ecplise |
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What is the umbra? |
Central dark part where light is totally blocked |
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What type of tides are highest during a neap tide? |
Low Tides |
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When do spring tides occur? |
During the full and new moon |
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What keeps the Earth in its orbit? |
Gravity |
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Why does the moon change shape during a Lunar Cycle? |
The orbit of the Earth |
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Solar Eclipse |
When the moons shadow appears on Earth surface |
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Lunar Eclipse |
occurs when the moon moves into the Earths shadow |
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Tide |
daily rise and fall of sea level |
