Earth Space Review

Which is in the correct order from smallest to largest?

• Star, solar system, galaxy, universe
• Galaxy, solar system, star, universe
• Universe, galaxy, solar system, star
• Star, galaxy, solar system, universe

Which is true of the sun?

• It is the largest star in the universe
• It is the brightest star
• It is an average star
• It is the hottest star

Earth Orbits the sun, yet the sun appears to move across Earth’s sky, rising in the east and setting in the west.  What cause this apparent movement in the sun?

• Earth’s rotation around the sun approximately every year.
• Earth’s revolution around the sun approximately every year.
• Earth’s revolution on its axis approximately every 24 hours.
• Earth’s rotation on its axis approximately every 24 hours.

How long does it take for the Earth to orbit the sun?

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• 366 days

• 365.25 days

• 24 hours

• 28 days

The outer planets are the four farthest from the sun. Which characteristics do all four outer planets share?

• Largest diameters in the solar system
• Surfaces of frozen rock and ice
• Evidence of very abundant life

Why do some stars look brighter than others?

• The Sun makes other stars look dim because the sun is so bright.
• Some stars are bigger than others and are at different distances from the Earth.
• All stars are the same distance from the Earth, but they are different sizes.
• All stars are the same size, but they are at different distances from the Earth.

How do shadows change in size throughout the day?

• No change

• Shorter then longer

• long then short then long again

• Long then short 

What is a group containing billions of stars, objects that revolve around those stars, gas, and dust.

• Planet 
• Universe
• Galaxy
• Solar system 

The path of one object in space around another object

• rotate
• line
• orbit
• spinning 

What does it mean to go around another object

• rotate 
• orbit