Rock Cycle Quiz

What happens to an object when it stays on the surface of a liquid?

• Sink

• Float

• Permeable

• Crystal

What type of material does not allow liquids to pass through it?

• Permeable

• Impermeable

• Sedimentary

• Mineral

How can rocks be described in terms of hardness?

• Only hard

• Only soft

• Hard or soft

• Neither hard nor soft

Which type of rock is formed by heat and pressure?

• Metamorphic rock

• Sedimentary rock

• Igneous rock

• Wooden rock

Which type of crust is found under the sea?

• Continental

• Oceanic

• Inner core

• Mantle

What is the mantle made of?

• Solid rock

• Semi-liquid, like plastic

• Water

• Gas

What percentage of Earth's volume does the mantle make up?

• 50%

• 84%

• 10%

• 100%

How hot is the inner core?

• As hot as ice

• As hot as a candle

• As hot as the surface of the Sun

• As hot as boiling water

What is the state of matter of the inner core?

• Liquid

• Gas

• Solid

• Plasma

What is the main reason the inner core is not liquid?

• It is too cold

• It is too dry

• The pressure is too high

• It is too small