Earth, Sun, Moon

Front

 to spin on an axis

Back

rotate

Front

the imaginary line around which Earth rotates

Back

axis

Front

to go around, or orbit, another object

Back

revolve

Front

the path of one object in space around another

Back

orbit

Front

caused by the spin of the Earth

Back

day/night cycle

Front

What causes day and night on Earth? Options: the tilt of Earth's axis, Earth's revolution around the sun, the moon, Earth's rotation

Back

Earth's rotation

Front

How long does Earth's rotation take?

Back

24 hours

Front

How long does Earth's revolution around the sun take?

Back

365 and 1/4 days

Front

What do we call the phenomenon where every 4 years we have an extra day due to each year being 1/4 of a day longer than what we consider a year?

Back

leap year

Front

An ellipse is the shape of Earth’s ________.

Back

orbit