Sci 8 - Universe & Stars Review 20-21

True or False
The Sun is the biggest star in the sky.

• True
• False

Why do other stars appear so much smaller than the sun?

• They are much smaller
• They are so far away
• They are not as bright
• They are dwarf stars

What color of star is the hottest?

• Blue
• Red
• Yellow
• Orange

What color of star is the coolest?

• Red
• Yellow
• Blue
• White

The color of a star tells us its

• magnitude

• temperature

• size

• age

Galaxies are composed of 

• billions of stars
• a star and the planets that orbit around it
• all of the bodies and objects in space

Most stars are made of which gases?

• Hydrogen only
• Hydrogen and Lithium
• Hydrogen and Sodium
• Hydrogen and Helium

Our sun is currently in what star stage?

• Protostar

• Nebula

• Main Sequence

• Red Giant

Which of these stars is hottest?

• Red Star

• Yellow Star

• Orange Star

• Blue Star

Compared to the rest of the stars, our sun is considered...

• Extremely Large and Cold

• Small with a medium temperature

• Medium size with medium temperature