The Solar System

How does the Sun's diameter compare to the Earth's?

Which planet is closest to the Sun?

A group of stars that form an imaginary picture in the sky is a(n)

A large system of stars, dust, and gas is a 

What causes the objects in the solar system to stay in orbit?

Which planet is third from the Sun?

The imaginary line that goes through the North Pole and South Pole is called a(n)

What has the most effect on Earth's seasons?

Earth takes one day to

How many planets are there in our solar system?

A chunk of rock or metal that orbits the Sun is called a(n)

Everything that exists in space is part of the 

The Moon appears bright at night because

Movement of one object around another is called

Day and night are caused by

A large ball of ice and dust that orbits the Sun is a 

Which phase of the moon is this?

What's it called when an object takes a path around another object?