3 Types of Rocks
Minerals
Properties
Vocabulary
W.E.D.
100
Which rocks are formed from heat and pressure?
Metamorphic
100

These are the building blocks of rocks.

non living crystalline substances found naturally in the earth

Minerals

100
Johnny sorted his rocks into a group of gray rocks, black rocks and white rocks. Which property did he look at?
Color
100
Scientists use _____________ to classify rocks.
Properties
100

Any process that breaks rock down into smaller pieces without changing the chemistry of the rock; typically wind and water.

Weathering (Physical)

200

Which rock compacts under the pressure of water?

Sedimentary

200
What is the most common material found on earth?
Minerals
200

A mineral that splits easily along flat surfaces  

Cleavage

200
Bits of rocky material that settle at the bottom of the ocean are called _________?
Sediments
200

Process in which sediment is laid down in new locations.

Deposition
300
Which rocks form in layers?
Sedimentary
300
Which mineral is the hardest?
Diamond
300
The way a rock reflects light is called ___________.
Luster
300
This rock's name means "from fire".
Igneous
300

Process by which weathered rock and soil are moved from one place to another

Erosion

400
Which rock is formed when magma or lava cools and hardens?
Igneous
400

Tell one property used to classify minerals.

Color, streak, cleavage, hardness, luster

400
Scratching a rock with your fingernail can show the rock's ___________.
Hardness
400
The color of a mineral as a powder is called its ________?
Streak
400

Process that splits rock when water seeps into cracks, then freezes and expands

Ice Wedging

500
Which rock is formed from fossils or plant and animal remains?
Sedimentary
500
True/False: Minerals are not found in rocks.
False!
500

List the five properties of rocks that we have learned in class.

Color, cleavage, luster, hardness, streak

500
This is the scale we use to determine the hardness of a rock.
Moh's Hardness Scale
500

The breaking down of rocks and other materials on the Earth's surface.

Weathering

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