Rock Types
Rocks formed from sediment.
This can cool and harden and form igneous rock.
What is lava or magma?
The way light reflects off of a mineral.
What is luster?
What is the crust?
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?
These rocks are formed by magma cooling.
What is an igneous rock?
These are two ways that sediments are formed.
What is weathering and erosion?
The scale that is used to measure the hardness of minerals
What is Moh's Hardness Scale
This is the center of the earth.
What is the core?
Name two ways people use rocks.
What is buildings, walls, roads, jewelry, decoration, countertops?
These rocks are formed from heat and pressure.
What is metamorphic rock?
These 2 things cause metamorphic rocks to form.
What are heat and pressure?
Another way to identify minerals; it leaves the color of the powder behind when rubbed against a rough white tile.
What is streak?
The layer of earth that is right below the crust.
What is the mantle?
A hard substance composed of one or more minerals.
What is a rock?
These rocks look like they have layers in them.
What is sedimentary rocks?
This rock is evidence of past life.
What is a fossil?
These are made from many different substances.
What are minerals?
This is hottest part of earth.
What is the core?
The hardest mineral.
What is a diamond?
This determines the size of crystals that form in igneous rocks.
What is the cooling rate of the magma or lava?
This type of igneous rock is black with a glassy texture. We looked at it in class.
What is obsidian?
You can see this property just by looking at a mineral. Many minerals can be several of these.
What is color?
In this layer rocks begin to melt.
What is the mantel?
The 5 ways to test the properties of a mineral.
What is luster, streak, hardness, color and cleavage or fracture