What is the name of the star at the center of our solar system?

• Sun

• Polaris

• Orbit

• Betelgeuse

How long does it take the Earth to rotate once?

• 24 hours

• 365 days

• 28 days

• 24 days

How long does it take the Earth to revolve once?

• 365 days

• 365 hours

• 28 days

• 24 hours

The universe is...

• The space and everything in it that we can and can't see.

• The space and everything in it that we can see.

• The space we live in.

• None of these.

The Universe is...

• The space and everything in it that we can and can't see.

• The space and everything in it that we can see.

• The space we live in.

• None of these.

What is orbit?

• The naturally elliptical revolution of an object around a center of gravity.

• The naturally elliptical rotation of an object around a center of gravity.

• Going around a star.

What is the pressure in space?

• 1 atmosphere

• 0 atmospheres

• 12 atmospheres

• -455 atmospheres

What color is space?

• Black

• Red

• Infrared

• Ultraviolet

What is a lunar eclipse?

• An eclipse in which the earth blocks sunlight to the moon.

• An eclipse in which the moon blocks sunlight to the earth.

What is a solar eclipse?

• An eclipse in which the earth blocks sunlight to the moon.

• An eclipse in which the moon blocks sunlight to the earth.