Igneous Rocks
This can cool and harden and form igneous rock.
What is magma or lava?
These are little pieces of rocks, pebbles, mineral grains, and shell fragments that eventually form rocks.
What are sediments?
Metamorphic to Igneous rock.
Melt and cool.
Name the three types of rock groups.
What is Sedimentary, Igneous and Metamorphic?
The process of rocks changing from one kind of rock to another kind of rock over long periods of time.
What is the rock cycle?
This kind of igneous rock is formed when magma cools beneath the Earth's surface.
What is Intrusive igneous rock?
These are two ways that sediments are formed.
What is weathering and erosion?
The two largest grain types.
What are sand and gravel?
Sandstone turns into this metamorphic rock.
What is quartite?
Name two ways people use rocks.
What is buildings, walls, roads, jewelry, decoration, countertops?
This type of igneous rock forms when lava cools on the Earth's surface.
What is Extrusive igneous rock?
These 2 things cause metamorphic rocks to form.
What are heat and pressure?
A type of metamorphic rock with distinct bands and layers.
What is foliated?
These rocks are made of living things.
What is organic sedimentary rock?
What happens if an igneous rock weathers? What rock does it turn into?
What is sedimentary rock?
This type of igneous rock is black with a glassy texture. We looked at it in class.
What is obsidian?
For an Igneous rock to become a sedimentary rock, what 5 things need to happen?
What is weathering, erosion, deposition, compaction, and cementation?
This type of coal is metamorphic.
What is anthracite coal?
A hard substance composed of one or more minerals.
What is a rock?
The softest mineral.
What is a talc?
This determines the size of crystals that form in igneous rocks.
What is the cooling rate of the magma or lava?
The type of sedimentary rock that can contain fossils.
What is sedimentary?
Granite hardens to become this metamorphic rock.
What is gneiss?
Igneous rock that is vesicular, light colored.
What is pumice?
These rocks are made of other smaller rocks cemented together.
What is a clastic sedimentary rock?