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Physical Science Unit B
Chapter 4, Lesson 1 Vocabulary
7
Science
5th Grade
04/20/2014

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Term
elliptical
Definition
oval shaped, like a flattened circle
Term
model
Definition
a representation of how something looks or works
Term
asteroid
Definition
a rocky object that revolves around the sun
Term
meteoroid
Definition
a small piece of rock or metal that travels in space around the sun
Term
meteor
Definition
a streak of light that passes through earth's atmosphere
Term
comet
Definition
a ball of ice, dust, and gasses that travels through space and orbits the sun
Term
meteorite
Definition
a piece of a meteoroid that lands on earth after passing throught the atmosphere
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