Rocks & Rock Cycle

What material is used to form igneous rocks?

• magma or lava
• sand
• gravel
• sediment

What process is used to form sedimentary rocks?

• Lava cools and hardens to form a rock.
• Deposition, compaction & cementation.
• Heat and pressure from inside the Earth turn rocks into new rocks.
• Existing rocks are changed to new rocks.

Which of the words below describe mud, sand, and tiny bits of rocks that cement together to form a type of rock?

• lava
• magma
• igneous rock
• sediment

What process forms metamorphic rocks?

• Lava cools and hardens to form a rock.
• Bits of sand and gravel form layers that turn into rock from pressure.
• Heat and pressure inside the Earth turn rocks into new rocks.

What type of rock can turn into a metamorphic rock?

• Igneous only
• Sedimentary only
• Metamorphic only
• Any type of rock

Which type of rock would you expect to find by a volcano?

• Metamorphic
• Igneous
• Sedimentary 

The process by which metamorphic rocks are formed...

• heat and pressure
• deposition, compaction and cementation
• melting then cooling & crystallizing

The process by which igneous rocks are formed...

• heat and pressure
• melting then cooling & crystallizing
• deposition, compaction and cementation

What is the rock cycle?

• molten rock that is stored underground.
• rock material that forms where rocks are broken down into smaller pieces.
• a process that changes one type of rock into another type of rock.

This rock was found near the mouth of a volcano. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic