Front

What holds a galaxy together?

Back

gravity

Front

Our galaxy is called___ _____ ___

Back

The Milky Way

Front

How many stars are in our galaxy?

Back

over 200 million

Front

Which planet is closest to the sun?

Back

Venus

Front

________ causes day and night.

Back

Rotation

Front

Earth makes one __________ around the Sun every 365 1/4 days or one year.

Back

revolution

Front

Because the earth spins on its axis, we experience:

Back

day and night

Front

How long does it take earth to make one complete revolution of the sun?

Back

365.25 days

Front

How long does it take the moon to rotate on its axis?

Back

28 days

Front

The shape of the earth's orbit around the sun: oval, circle, semicircle, ellipse

Back

ellipse