One star might appear dimmer than another star because

• it is closer to Earth

• it is a darker color

• it is farther from the Earth

• it is cooler

What determines the color of a star?

• the distance from the Earth

• surface temperature

• its brightness

• its size

The stars with the highest surface temperature are

• red

• white

• blue

• yellow

The coolest stars are

• red

• white

• blue

• yellow

Our sun is a _______________ star.

• red

• white

• blue

• yellow

Astronomers use ____________ to measure the size of stars.

• the sun's radius

• lightyears

• measuring tape

• telescopes

Tags

NGSS.MS-ESS1-3

Stars come in different sizes and colors

• True

• False

Stars have 5 points and are very sharp

• True

• False

Luminosity is the

• how far away the sun is from Earth

• how fast light can travel

• actual brightness of a star

• the sun

Very small stars about the size of Earth is called a

• white dwarf

• tiny yellow dot

• super small star

• little blue