Igneous
What are igneous rocks made of?
Cooled magma or lava
What a strata?
One layer of rock
What is texture?
The size shape, and grain of a rock
What is a rock?
A naturally occurring solid made of minerals
What is needed for metamorphic rocks to form?
Heat and pressure
How do fine grained igneous rocks form?
When magma cools quickly
What is stratification?
The process of being put into layers
What is deformation?
A change in a rock because of a force put on it. (Rocks can stretch, bend, or be squeezed)
How did people in the past use rocks?
Tools, weapons, shelters
What are the two groups of metamorphic rocks?
Foliated and Nonfoliated
What are intrusive igneous rock?
When magma cools inside the crust
What is weathering?
When wind and water wear apart a rock into smaller pieces called sediments
What is the rock cycle?
When rocks change from one kind to another over and over.
How are rocks classified?
Type of rock they are, composition, and texture
What does foliated metamorphosis look like?
Rock with lines or bands of minerals
What are extrusive igneous rocks?
When magma cools on the outside surface of Earth
What is erosion?
The process of washing away sediment to another location
What happens to minerals under heat and pressure?
The minerals become more stable
Name the 3 groups of rocks.
Igneous, sedimentary and metamorphic
What does nonfoliated metamorphosis look like?
No bands but sparkles with minerals
Tell the 3 ways magma forms.
1 rock is heated,
2 pressure is released
3. The composition of the rock changes
Name the 3 types of sedimentary rocks.
Clastic, Chemical, and Organic (Biochemical)
Name the steps in the rock cycle in order.
Weathering, Erosion, Deposition, Cementation, Heat and Pressure
What is composition?
Chemical makeup of the rock
Name 3 uses for metamorphic rock
Counter Tops, Grave stones, Statues, Columns, and Buildings