13 terms

MISD Sci5 Solar System, 3rd Six Weeks (WITH Pics) V2

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Terms in this set (...)

orbit
path of object revolving around another object
craters
bowl-shaped indents
moon
a natural satellite, orbits a planet
sun
star at center of our solar system
earth
planet with life on it
gravity
a force, pulls objects toward earth's center
rotation
one complete circle on an axis, 24 hours for earth
compass
shows direction, uses small magnet
shadow
light is blocked and causes a dark area
sundial
uses sun's position to measure time
night
earth faces away from sun; dark
day
earth faces sun; lighted
axis
a line around which something spins
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