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Chapter 3 Science Test Review
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What does the Earth revolve around in a heliocentric system?
The Sun
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What is the smallest terrestrial planet?
Mercury
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How does the sun produce energy?
Nuclear Fusion
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What are Earth's 3 main layers?
Core, Mantle, Crust
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Who discovered that Jupiter has 4 moons?
Galileo Galilei
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What gases are the gas giants mainly composed of?
Hydrogren and Helium
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What do all the inner planets have in common?
They all are small and have rocked surfaces
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How are Venus and Earth alike?
Similar Size and Density
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What consists of 8 planets, their moons, and several kinds of smaller objects?
Our Solar System
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What does the Earth revolve around in a heliocentric system?
The Sun
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What are Saturn's rings mostly made up of?
Chunks of ice and rock
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What layer are you looking at when you look at an image of the sun?
Photosphere
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Between what two planets if the asteroid belt located?
Mars and Jupiter
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What do the four outer planets have in common?
They are much larger then Earth and are made of mainly hydrogen and helium
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Who discovered that each planet's order is an ellipse?
Kepler/Brahe
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What was the Earth center model called?
geocentric
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What is distinctive about Jupiter?
Largest and most massive planets
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What planet has a lower density than water?
Saturn
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What makes Uranus different from the other planets?
Rotates on its side
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What is the middle layer of the sun's atmosphere?
Chromosphere
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