Shared Flashcard Set

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geography
section 1
12
Geography
9th Grade
09/14/2009

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Cards

Term
solar system
Definition
the sun and the group of bodies that revolve around it
Term
planets
Definition
major bodies that orbit a star
Term
moons
Definition
smaller objects that orbit a planet
Term
satellite
Definition
a body that orbits a larger body
Term
solar energy
Definition
energy from the sun, which reaches earth as light and heat
Term
rotation
Definition
one complete spin of earth on its axis
Term
revolution
Definition
one elliptical orbit of earth around the sun
Term
nebula
Definition
gas and dust from which stars form
Term
how many planets are in our solar system
Definition
8 stars
Term
what is the doffrence between inner and outer planets
Definition
the inner planets have a rocky outter shell and the outer planets are made up of gas
Term
what is the surface of the moon like
Definition
barren volcanic surface and many craters
Term
what id the diffrence between rotation and revolution
Definition
rotation is on the axis and revolution is around the sun
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