Key Terms

By Formative Library
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Last updated over 2 years ago
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accretion
the gradual accumulation of mass, as by a planet forming from colliding particles in the solar nebulaexoplaneta planet orbiting a star other than our Sun

iron meteorite
a meteorite composed primarily of iron and nickel

meteor
a small piece of solid matter that enters Earth’s atmosphere and burns up, popularly called a shooting star because it is seen as a small flash of light

meteor shower
many meteors appearing to radiate from one point in the sky; produced when Earth passes through a cometary dust stream

meteorite
a portion of a meteor that survives passage through the atmosphere and strikes the ground

stony meteorite
a meteorite composed mostly of stony material, either primitive or differentiated

stony-iron meteorite
a type of differentiated meteorite that is a blend of nickel-iron and silicate materials
Please take the time to check out the source for this material from Openstax if you plan to use this in your lesson plan!: https://openstax.org/books/astronomy/pages/14-key-terms