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20 Cards in this Set
- Front
- Back
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What is a galaxy?
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A group of solar systems
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What is a solar system?
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A star with planets that revolve around it.
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What is a universe?
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A group of galaxies
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What causes day and night?
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The Earth rotating on its axis.
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What causes the seasons?
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The Earth's tilt as it revolves around the sun.
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What is rotation?
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Spinning around
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What is revolving?
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Moving around an object
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What is a constellation?
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A pattern of stars in the sky. They make a picture.
Example: Big dipper, Ursa Major, Drako |
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How long does it take the Earth to rotate on its axis?
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24 hours
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How long does it take the Earth to revolve around the sun?
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365 days
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Name the planets in order from the sun?
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Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
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What are the inner planets?
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Mercury, Venus, Earth, Mars
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What are the outer planets?
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Jupiter, Saturn, Uranus, and Neptune
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What separates the inner from the outer planets?
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An asteroid belt
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Name the planets in order from smallest to largest.
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mmvenusj
Mercury,Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter |
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What planet is closest to Earth in size and distance?
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Venus
It is known as the sister planet of Earth. |
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What is the largest planet?
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Jupiter
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What is the smallest planet?
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Mercury
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How many stars are in our solar system?
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One
the sun |
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How many planets have liquid water on them?
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One
Earth |
