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26 Cards in this Set
- Front
- Back
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What is a Meteoroid?
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A chunk of rock in space
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What is a Meteor?
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Rocks in the atmosphere (shooting stars)
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What is a Meterorite?
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Rocks that hit planets
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What is a Comet?
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A mass rock and dust mixed with frozen water, methane, and other gases “dirty snowballs”
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What are the 3 parts of a Comet?
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Nucleus- Solid Center (Frozen)
Coma- Gas cloud surrounding the comet (glowing) Tail- Trail of Gasses (behind the comet) |
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What are Meteor Showers caused by?
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Comets
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What are the 5 steps that formed the Solar System?
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1. Ball of gas
2. 2 gravity starts contracting 3. under pressure starts to burn 4. burn pushes other material away 5. extra material pulls away |
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What keeps planets in orbit around the sun?
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Inertia and Gravity
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What is the difference between an inner planet and outer planets?
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Inner- small, rocky, and have few moons (max 2)
Outer-large, gas, many moons and rings |
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Why does the comets "tail" point behind the comet?
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Solar Wind
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Atmosphere keep _____ in
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heat
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Which planet was first discovered by a telescope and what is unique about that planet?
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Uranus- rotates on its side
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Which planet was first discovered by a mathematical equation?
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Neptune
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There are big spots on 2 planets, which planets and what are the spots?
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Jupiter and Saturn- Hurricanes
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Where is Pluto located?
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Kiper Belt
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Why is the sky black on Mercury?
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Theres no atmosphere to scatter the light
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What is the distance between the Earth and the Sun?
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150 billion KM
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List the planets from largest diameter to smallest diameter.
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Jupiter, Saturn, Uranus, Earth, Venus, Mercury, Pluto
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What are the 4 rocky planets?
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Mercury, Venus, Earth, and Mars.
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What are the four gas giants?
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Saturn, Uranus, Neptune, and Pluto.
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Which planets have rings?
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Jupiter, Saturn, Uranus, and Neptune.
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Which planets have 0 moons?
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Mercury and Venus
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Which planet/s have 1 moon?
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Earth and Pluto
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Which planet has 2 moons?
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Mars
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Which planet has more then 2 moons?
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Saturn, Uranus, Neptune, and Jupiter
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What is unique about the rotation of Venus?
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Its the opposite of every other planet
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