Solar System

Everything that exists in space is part of the 

Which phase of the moon is this?

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

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

Movement of one object around another is called

What has the most effect on Earth's seasons?

How many planets are there in our solar system?

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

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

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?

Day and night are caused by

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

Which planet is closest to the Sun?

Earth takes one day to

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

The Moon appears bright at night because

Which phase of the moon is this?

What is the main cause of tides on Earth?