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Axis A line, real or imaginary, around which something spins
Compass A tool used for finding direction.
Craters Bowl-shaped indents or cavities on the surface of a planet, moon, or asteroid that are caused by a collision with another object, such as a meteorite
Day The time during rotation when the Earth faces the Sun and it is lighted; this rotation gives the false appearance that the Sun travels from east to west across the sky
Moon A natural satellite that orbits a planet. Some planets have no moons; others have over 60 moons.
Night The time during its rotation when the Earth faces away from the Sun and it is dark; this rotation gives the false appearance that stars move across the sky
Orbit The path one object takes as it revolves around another object in space
rotation A 24-hour period, or, the time it takes the Earth to make one complete rotation on its axis
revolution It takes 365 days for the Earth to revolve around the Sun. This is what causes our seasons.
shadow A dark area caused when an object blocks light falling on a surface
Created by: llpippen