Earth Science Unit 1 Cosmology Practice Test

The planetary rovers Curiosity, Opportunity, and Spirit have all explored the same body in our solar system. Which one?

• Mars
• Saturn
• Jupiter
• Venus

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VA.ES.2.c.

Label the categories on the HR Diagram

a

b

c

d

protostars

neutron stars

red giants

main sequence

super giants

white dwarfs

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VA.ES.2.b.

Polaris's absolute magnitude is approximately -3.64. The absolute magnitude of Procyon B is 10.7.

Which star is brighter?

• Procyon B

• Polaris

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VA.ES.2.b.

Below are the stages of the life cycle of a sun-like star. Put them in the correct order.

• red giant

• planetary nebula

• protostar

• main sequence

• white dwarf

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VA.ES.2.b.

Select the stars that will supernova.

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VA.ES.2.b.

What is the approximate temperature of our sun?

• Approximately 6,000K

• Approximately

  30,000K

• Approximately 15,000K

• Approximately 2,500K

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VA.ES.2.b.

Of the stars below, which one is the brightest?

• Aldebaran
• Deneb

• Sun

• Procyon B

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VA.ES.2.b.

A star's color is determined by its ______________

• mass
• age
• surface temperature
• size

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VA.ES.2.b.

What is a galaxy?

• A galaxy is a collection of asteroids.
• A galaxy is a massive system of stars, gas, dust, and dark matter bound by gravity.
• A galaxy is a type of planet.
• A galaxy is a small group of stars.

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VA.ES.2.b.

What is the name of our galaxy?

• Andromeda
• Triangulum
• Whirlpool
• Milky Way

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VA.ES.2.b.