Solar System 1a

Earth is over 4.5 billion years old.

• True

• False

Which other planet in our solar system is most similar to the mass and diameter of the earth?

• Venus

• Mars

• Neptune

• Mercury

There are two types of planets in our solar system. Which is NOT correct?

• Terrestrial

• Gaseous

• Plasma Filled

The earth's mantle is mostly made of

• Silicones

• Oxygen

• Silicates

• Hydrogen

Which phase of matter is the inner core?

• Solid

• Liquid

• Plasma

• Gas

This is the only terrestrial planet with a moon?

• Mercury

• Venus

• Earth

• Mars

This is the only planet to have water in all of its phases.

• Mercury

• Venus

• Earth

• Mars

This thin layer of gas surrounding the earth protects life.

• Hydrosphere

• Atmosphere

• Lithosphere

• Biosphere

This is the main gas found in the earth's atmosphere.

• Nitrogen

• Oxygen

• Helium

• Carbon Dioxide

What proves that the earth rotates?

• Seasons

• Moon Phases

• Day & Night

• None of them