Sun-Earth-Moon System Vocabulary

Front

model

Back

a representation of the sun-Earth-moon system

Front

axis

Back

an imaginary line through Earth

Front

revolve

Back

Earth does this around the sun once a year

Front

gravity

Back

force that holds Earth in orbit around the sun

Front

orbit

Back

Earth’s path in space

Front

rotate

Back

Earth’s spinning in space

Front

hemisphere

Back

one-half of Earth

Front

season

Back

a time of year with a particular type of weather