Unit 7 Week 2 Vocabulary

What does the term 'galaxy' mean?

• A planet in our solar system

• A single star system

• A small group of stars close to Earth

• A cluster of billions of stars, dust, and gas held together by gravity

What is the Milky Way Galaxy?

• A planet in the solar system

• A constellation visible from Earth

• A type of star

• A galaxy that contains Earth and our solar system

What is a light year?

• The distance traveled by light over a period of a year

• A measure of time

• A unit of weight

• A type of star

What is the Hubble Telescope?

• A type of star

• A large telescope that collects information in space

• A constellation

• A planet in the solar system

What does 'Polaris' refer to?