Igneous Rocks
This can cool and harden and form igneous rock outside a volcano.
What is lava?
These are little pieces of rocks, pebbles, mineral grains, and shell fragments that eventually form rocks.
What are sediments?
The way light reflects off of a mineral.
What is luster?
What are the names of the 4 layers of the earth?
The crust, mantle, inner core and outer core
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 rock has lots of holes, we looked at it in class.
What is pumice?
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
A fossil is only found in this type of rock
What is sedimentary?
What is the name of a scientist who studies rocks?
A geologist
This igneous rock is commonly used in kitchen counters.
What is granite?
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?
What is the difference between a rock and a mineral?
A mineral has only one substance and a rock is made of more than one mineral
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 needs to happen?
What is weathering, erosion, and compaction
The property that explains the amount of light that can be seen through a rock or mineral.
What is opacity?
What is the name of mining that happens in a shaft far below the earth's surface?
Closed pit mining
The hardest mineral.
What is a diamond?
This type of igneous rock forms on the outside of a volcano
What is extrusive igneous rock?
The liquid that is made when metamorphic rocks are heated up.
What is magma?
You can see this property just by looking at a mineral. Many minerals can be several of these.
What is color?
If you are mining gold, and it is mostly near the earth's surface, what type of mine would you build to extract it?
An open pit mine
The 5 ways to test the properties of a mineral.
What is luster, streak, hardness, color and cleavage or fracture