Space Review

Sunspots are ______ and ______ than the gases surrounding them.

• darker; cooler

• brighter; hotter

• darker; hotter

• brighter; cooler

Gary is trying to think of an object that could model a sunspot. His teacher tells him that such an object might be found right on his face. Which of the following most closely models the behavior of a sunspot?

• an eyelash

• a lip

• a birthmark

• a freckle

Immediately above the Sun's photosphere is the _______, which is the Sun's lower atmosphere.

• core

• corona

• chromosphere

• solar wind

Use the table below to answer the following question.

Which of the following most likely appears brightest from Earth?

• Procyon

• Proxima Centauri

• Sun

• Epsilon Eridani

The table below describes the temperature of different colors of stars. If the Sun is white-yellow, which of the following is a reasonable approximation of its temperature?

• 5,778 K

• 6,232 K

• 7,489 K

• 4,923 K

The Sun is

• a medium-sized star

• a very small star

• the same size as all the other stars

• the largest star in the universe

Which of the following statements about the Sun is true?

• The Sun is made up mostly of helium and carbon dioxide

• The Sun rotates about its axis at a predictable rate

• The Sun orbits a nearby star called Alpha Centauri

• The outer layer of the Sun is also its most dense layer

Sunspots are located

• above the Sun's corona.

• at the center of the Sun.

• on clouds next to the Sun.

• on the Sun's photosphere.

Which of the following lists stars in order of increasing size?

• giants, superdwarfs, dwarfs

• dwarfs, giants, supergiants

• superdwarfs, dwarfs, giants

• giants, supergiants, dwarfs

Which of the following statements about the Sun is true?

• The Sun is only one of billions of stars in the galaxy, many of which are very similar to the Sun.

• The Sun is one of only a few stars in the galaxy but is much smaller than any of the other stars.

• The Sun is only one of billions of stars in the galaxy but is much larger than any of the other stars.

• The Sun is only one of billions of stars in the galaxy but is much smaller than any of the other stars.