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?
This is the way light reflects off of a mineral.
Name the three types of rock groups.
What are igneous, sedimentary, 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.
Intrusive igneous rock
These are two ways that sediments are formed.
What are weathering and erosion?
This is the scale that is used to measure the hardness of minerals.
A naturally occurring, inorganic solid, that has a definite chemical composition and crystal structure.
What is a mineral?
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.
Extrusive igneous rock
These 2 things cause metamorphic rocks to form.
What are heat and pressure?
This is another way to identify minerals; it leaves the color of the powder behind when rubbed against a rough white tile.
What is streak?
A hard substance composed of one or more minerals.
What is a rock?
When an igneous rock weathers, it turns into this.
What is sedimentary rock?
This is what indicates (or shows) that dissolved gases escaped durinng the cooling process.
What are holes in the rock?
For an Igneous rock to become a sedimentary rock, what needs to happen?
What is weathering, erosion, compaction, and cementation?
Anything "organic" must contain this element.
What is carbon?
Igneous rock that has fine-grained crystals.
What is extrusive igneous rock?
The hardest mineral.
What are diamonds?
This determines the size of crystals that form in igneous rocks.
What is the cooling rate of the magma/lava?
This kind of rock can contain remains of organisms.
What is biochemical rock?
You can see this property just by looking at a mineral. Many minerals can be several of these.
What is color?
Rocks that form from broken pieces of minerals and rock fragments.
What are clastic rock?
The 5 ways to test the properties of a mineral.
What is luster, streak, hardness, color and cleavage or fracture?