Solar System

In what way are inner planets alike?

• Thick atmospheres
• Very dense
• Gaseous
• Spaced far apart

How are Venus and Earth similar?

• Same rotation
• Both have liquid water
• Similar atmosphere
• Size and density

Which outer planet has rings?

• Saturn
• Uranus
• Neptune
• All outer planets

Which planet has a rotational period of 2 earth months?

• Venus
• Mercury
• Mars
• Uranus

How do we know Mars used to have liquid water?

• Volcanoes flowing
• Thin atmosphere
• Dry riverbeds
• Ice caps

Which planet is the largest in our solar system?

• Jupiter
• Mercury
• Venus
• Saturn

Why is Venus so hot?

• It is closest to the Sun.
• It has a very fast revolution.
• It has volcanoes.
• It has a thick atmosphere creating the greenhouse effect.

True/False: Meteoroids are like small asteroids.

• True
• False

A revolution describes a planet's

• year
• day
• month
• hour

True/False: A rotation describes a planet's day.

• True
• False