Lesson the Rock Cycle

Metamorphic rocks are formed from

• heat and pressure

• melted rock

• sediment cementing together

• minerals dissolving

What process is used to form metamorphic rocks?

• Lava cools and hardens to form a rock.

• Bits of sand and gravel form layers that turn into rock from pressure.

• Extreme heat and pressure from inside the Earth turn rocks into new rocks.

True or false: any one kind of rock can change into another kind of rock at any time given the right conditions exist.

• True

• False

What are Igneous Rocks that form as magma cools underground called

• extrusive rocks

• intrusive rocks 

Which rock cools the slowest 

• Intrusive (inside the Earths surface)

• Extrusive (on the Earths surface)

An igneous rock containing large crystals is most likely a(n)

• Chemical Rock

• Foliated Rock

• Extrusive Rock

• Intrusive Rock

As lava cools and crystallizes, what type of rock will form?

• Sedimentary

• Metamorphic

• Extrusive Igneous

• Intrusive Igneous

Scientists divide rocks into groups based on how they form.

• True

• false

The process in which sediment are fused or glued together.

• compaction

• deposition

• organic rock

• cementation

Why will intrusive igneous rocks have big mineral grains?

• magma cools very slowly and big crystals form

• there is a lot of heat and pressure added to the rock

• water deposits large minerals near a volcano

• lava cools very quickly on the surface of the Earth