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13 Cards in this Set

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the path one body in space takes as it revolves around another body
orbit
the spinning of earth
on its axis
rotate
an imaginary line that passes through Earth's center and its north and south poles
axis
the passing of one object through the shadow of another
eclipse
point on Earth's orbit at which the hours of daylight are at their greatest or fewest
solstice
point in Earth's orbit at which the hours of daylight and darkness are equal
equinox
large round bodies that revolve around a star
planets
chunks of rock that look like giant potatoes in space
asteroids
balls of ice and rock that circle the sun from two regions beyond the orbit of pluto
comets
an instrument that magnifies distant objects, or makes them appear larger
telescope
to travel in a closed path around an object
revolve
a natural body, like the moon, or an artificial object that orbits another object
satellite
a robot vehicle used to explore deep space
space probe