The Sun and Earth
The Moon and Earth
The Planets
The Stars
100

The time is takes Earth to make one complete trip around the Sun.

What is a year!

100

A hollow area in the ground...

What is a crater!

100

A large body of rock or gas that revolves around a star...

What is a planet!

100

The only star in our solar system...

What is the Sun!

200

A regular path Earth follows around the Sun...

What is orbit!

200

The phase of the Moon that happens when we see the entire lighted half...

What is a Full Moon!

200

The four planets farthest from the Sun...

What is the Outer Planets!

200

A group of stars that seem to form a picture...

What is a constellation!

300

The movement of Earth when it spins...

What is rotation!

300

The phase just before and after a full Moon...

What is gibbous Moon!

300

A star and the objects that move around it make up...

What is the Solar System!

300

The coolest kind of star (blue or red?)...

What is red!

400

A real or imaginary line through the center of a spinning object...

What is axis!

400

The different shapes that we see of the Moon...

What is phases!

400

The four planets closest to the Sun are called...

What is the Inner Planets!

400

What is the hottest star (blue or red?)...

What is blue!

500

To move around another object...

What is revolve!

500

The phase of the Moon that happens when the lighted half faces away from Earth...

What is new Moon!

500

A tool used to make faraway objects appear larger is...

What is a telescope!

500

A glowing ball of hot gases that gives off light and heat...

What is a star!