Unit 5 Space

What are terrestrial or the inner planets composed of?

• water

• gas

• rock 

• none of the above

Planets that are farther from the sun

• take more time to orbit

• take less time to orbit

What are the outer planets composed of ?

• rock

• gas

• dust

True or False
The Earth is the center of the solar system.

• True

• False

The order of the planets is:

• Mars,Venus,Earth,
  Mercury,Saturn
  Jupiter, Uranus, Neptune

• Earth,Venus,Mars
  Jupiter, Neptune,
  Mercury,Saturn,
  Uranus

• Mercury,Venus,Earth
  Mars,Jupiter,
  Saturn,Uranus
  Neptune

True or False
The planets are all equally distanced from each other.

• True

• False

Which planet is the smallest?

• Mercury

• Venus

• Earth

• Mars

What is in between the inner planets and the outer planets?

• Asteroid belt

• Kuiper belt

• Sun

• Moon

What force keeps the planets orbiting the sun?

• Gravity

• Magnetism

• Electricity

• Friction

What do the planets orbit in our Solar System?

• Each other

• The Moon

• The Earth

• The Sun