Front

What is the largest structure in the universe?

Back

Galaxy

Front

What term describes all of space and time, and everything in it?

Back

Universe

Front

What is a large body in outer space that orbits a star?

Back

Planet

Front

What is the path an object takes in its revolution around another object?

Back

Orbit

Front

How long does it take for Earth to complete one rotation on its axis?

Back

24 hours

Front

What is the term for the movement of an object around another object in space?

Back

Revolution

Front

What is the name of our solar system's star?

Back

Sun

Front

What do we call a group of stars, gas, and dust held together by gravity?

Back

Galaxy

Front

What is the term for the spinning motion of an object around its own axis?

Back

Rotation

Front

What is the name of the closest planet to the Sun?

Back

Mercury