Universe Vocabulary

All of the matter in space and time.

• Universe

• Galaxy

• Solar System

• Star

Group of stars, gas, and dust

held together by gravity.

• Universe

• Galaxy

• Planets

• Small celestial bodies

Draw a spiral shaped galaxy.

The image depicts a _______ type of galaxy.

• Spiral galaxy

• Elliptical galaxy

• Irregular galaxy

• Unknown galaxy

Our Sun and Solar System is located in the spiral galaxy called the ________ _______

The collection of eight planets and their moons in orbit around the Sun.

• Galaxy

• Planetary system

• Solar System

• Universe

An object in space that produces its own heat and light.

• Planet

• Moon

• Star

• Comet

Body in space moving in an elliptical orbit around a star. There are 8 in our Solar System.

• Planet

• Moon

• Comet

• Asteroid

The distance light travels in one year (6 trillion miles).

• Light Minute

• Light Year

• Astronomical Unit

• Solar Year

A cloud of dust and gas in space; usual birthplace of stars.

• Universe

• Asteroid belt

• Galaxy

• Nebula