Front

What causes Earth to orbit the sun?

Back

the force of gravity

Front

What is the sun made of?

Back

hydrogen and helium gasses

Front

Why does the sun appear to be larger than other stars in the sky?

Back

Other stars are farther away than the sun

Front

Why does the sun appear to move across the sky?

Back

Earth rotates on its axis

Front

The length of time it takes for Earth to make one rotation on its axis is called a:

Back

day

Front

The amount of time it takes Earth to make one revolution around the sun is called a:

Back

year

Front

How many stars are in our solar system?

Back

1

Front

Which star is closest to Earth?

Back

6

Front

A "light year" is a measure of:

Back

distance

Front

How many planets are there in our solar system?

Back

8