The path one object takes as it revolves around another object in space
orbit
making a complete spin on an axis
rotation
an imaginary line that a sphere rotates around
axis
making a complete turn or orbit around an axis or center
revolution
a natural satellite that orbits a planet
moon
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 metereoite
craters
the heaviness of an object
weight
the star at the center of our solar system that supplies heat and light to Earth
sun
the planet that all known life exists on
earth
the outermost covering or layer
surface