Classifying Rocks
_________________ are scientist that study rocks.
A geologist
__________ rock is any rock that forms from volcanic activity.
Igneous
__________ rocks are rocks that form from sediments, small pieces of material that come from rocks or living things.
Sedimentary
_____________ rocks are rocks that change from one form to another.
Metamorphic
The __________ ____________ is a series of processes on Earth’s surface and in the crust- and mantle that slowly change rocks from one kind to another.
rock cycle
What type of rock is granite?
Igneous Rock
The two types of Igneous rocks are ____________ and _____________.
Intrusive; Extrusive
What are the little pieces of rock that make up a sedimentary rock?
Sediments
Metamorphic rocks are rocks formed from ___________ and ___________.
heat and pressure
___________ is the process that changes magma into Igneous rock.
cooling or solidification
What is the difference between lava and magma?
Their location. Magma is under the Earth's crust and lava is above the Earth's crust.
Extrusive rock is Igneous rock formed from lava that erupted _____________ Earth’s surface.
outside or above
What is the layering of sediments on top of each other called?
Deposition
Where are most metamorphic rocks formed?
Under the Earth's crust
__________ and ___________ is the process that changes Igneous or Sedimentary rocks into Metamorphic rocks.
heat and pressure
What causes changes in a igneous rock's texture.
The size of it's crystals.
Igneous rock that formed when magma hardened ____________ or ____________ Earth’s surface is called Intrusive rock.
beneath or inside
_____________ is the process of breaking rocks down into sediments.
weathering
What pattern do most metamorphic rocks have?
A wave or wavy pattern
____________ rocks are the rocks formed from deposition, compaction, and cementation.
Sedimentary
What type of specific type of rock is obsidian?
Extrusive igneous rock
Why does a Pumice rock have holes in it?
The holes were created by air bubbles that were caused by pressure.
___________ rocks, _____________ rocks, and other ___________ rocks can be changed into Metamorphic rocks.
Igneous, Sedimentary, and Metamorphic
_____________ and _____________ is the process that changes any rock back into sediments.
Weathering and erosion