Study Guide: The Brightness of Stars

Stars form from a huge cloud of gasses and dust called a(n) ________________________.

• nebula

• galaxy

• comet

• asteroid

Stars can be classified by their ____________________ and temperature.

• color

• mass

• size

• composition

The ____________________ stars appear to be a bluish color.

• hottest

• coolest

• brightest

• smallest

You can tell a planet from a star because stars tend to twinkle, while planets have ____________________ light.

• steady

• sparkling

• shimmering

• flickering

What color do the coolest stars appear to be?

• red

• blue

• yellow

• white

The explosion of a star is called a _____________________________.

• supernova

• hypernova

• nebula

• black hole

____________________ pulls clumps of gas and dust together to form stars.

• Gravity

• Magnetism

• Friction

• Pressure

True or False: The Sun is the largest star in our solar system.

• True

• False

____________________ most affects how bright a star appears.

• distance

• size

• shape

• color