What is a galaxy?

• A planet

• A single star

• A small group of stars

• A huge collection of concentrated stars

Tags

NGSS.MS-ESS1-2

How many stars does each galaxy contain?

• Hundreds

• Thousands

• Millions

• Hundreds of billions

Which star is the most important in the Milky Way galaxy?

• Sirius

• The Sun

• Alpha Centauri

• Betelgeuse

Which type of galaxy is the Milky Way believed to be?

• Spiral

• Lenticular

• Irregular

• Elliptical

Tags

NGSS.MS-ESS1-2

What are the three types of galaxies mentioned?

• Elliptical, Irregular, Circular

• Elliptical, Circular, Spiral

• Circular, Irregular, Spiral

• Elliptical, Irregular, Spiral

How old is the Milky Way galaxy estimated to be?

• 10 billion years

• 5 billion years

• 15 billion years

• 20 billion years

Where is our solar system located in the Milky Way galaxy?

• In an elliptical arm

• Outside the galaxy

• In one of the spiral arms

• At the center

What does our solar system include?

• Only the Sun

• Only the planets

• The Sun and the Moon

• The Sun, eight planets, and all material revolving around the Sun

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3