SPACE

Universe

100

The Force that holds everything together in the Universe.

Gravity

200

What determines how much gravity an object has?

It's mass

300

What is used to measure distance in space?

Light Years

400

What do scientists believe started the Universe?

Big Bang

500

Any smaller object that orbits a larger one.

Satellite

Galaxies

100

What is the name of our galaxy?

Milky Way

200

How do scientists classify galaxies?

By their shape

300

What kind of galaxy is the Milky Way?

Spiral

400

Draw an elliptical galaxy.

Oval

500

Any galaxy that is not spiral or elliptical is called what?

Irregular

Stars

100

Where is a star born?

Nebula

200

The death of the largest stars form an area of such strong gravity that not even light can exist. What is this called?

Black Hole

300

What is it called when a large star explodes and sheds its layers?

Supernova

400

What are the two main gases in a star?

Hydrogen, Helium

500

What is the process by which stars create light, energy and heat?

Fusion

Solar System

100

How many stars are in our solar system?

One

200

What is the name of the oval path that objects take around our sun?

Elliptical

300

All planets spin around. What is this called?

Rotate

400

All planets move around the sun. What is this called?

Revolve

500

What holds all the planets and objects in our solar system?

The sun's gravity

Space Junk

100

"Space Rocks"

Asteroids

200

"Dirty Snowballs"

Comets

300

"Shooting Stars"

Meteors

400

When a piece of rock or metal hits the ground, what do we call it?

Meteorite

500

Located between Mars and Jupiter

Asteroid Belt