Solar System

Mercury, Venus, Earth and Mars are called the ____.

• outer gas giants

• Jovian moons

• inner terrestrial plantets

• Kupier belt

Jupiter, Saturn, Uranus and Neptune are called the ____.

• outer gas giants

• Jovian moons

• inner terrestrial planets

• Oort cloud

Which planets do we KNOW contain life?

• Jupiter and Pluto

• Mars and Earth

• Earth and Venus

• Earth - it's the only one we know so far.

Which of the following does Jupiter have?

• Olympus Mons

• Great Red Spot

• Rings

• Great Red Spot and rings

What characteristics do Earth and Venus share?

• They both rotate the same direction.

• Their atmospheres are made of the same gases.

• They are approximately the same size and density.

• They have the same revolution time.

Which former planet is now characterized as a dwarf planet?

• Neptune

• Deimos

• Mercury

• Pluto

What is the largest object in our solar system?

• Jupiter

• Saturn

• Earth

• Sun

Which two inner terrestrial planets have NO moons?

• Earth and Venus

• Venus and Mars

• Mercury and Venus

• Mars and Mercury

The surface of Mercury is covered by many craters because Mercury is so close to the sun and has no ____ to protect it from space debris.

• water.

• atmosphere.

• mountains.

• volcanoes.

Why is Mars' surface so red?

• amount of iron oxide in the soil

• lack of water

• volcanoes

• no atmosphere