Show:
Properties of Minerals
Classifying Rocks
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
100
A minerals streak is the color of this
What it's powder?
100
This term describes how a rock's surface looks and feels
What is texture?
100
This best describes igneous rocks
What is hard and dense?
100
Process that breaks up rock on Earth's surface
What is weathering?
100
Forces that change the rock form to create a metamorphic rock
What is heat and pressure?
200
Geologists use this test to determine the hardness of a mineral
What is the scratch test?
200
A kind of rock that forms when heat or pressure change an existing rock
What is a metamorphic rock?
200
Extremely rapid cooling of lava win which no crystals form this texture
What is glassy texture?
200
Sand grains, pebbles, mud, shells, and leaves are all examples
What is sediment?
200
geologists classify metamorphic rocks by the arrangement of their
What are grains?
300
Quartz, gold and calcite are examples of this, but coal is not.
What is a mineral?
300
Geologists observe the rock's mineral composition, color, and
What is texture?
300
The most common type of intrusive rock
What is granite?
300
A sedimentary rock formed from coral, shells, and skeletons piled up on the ocean floor
What is limestone?
300
The process that breaks granite into sediment is
What is weathering ?
400
The scale of ranking of minerals from softest to hardest
What is the Mohs hardness scale?
400
How many rock-forming minerals make up most of the rocks of Earth's crust/
Oh about 20
400
People in history have used igneous rocks for years for what
What are tools?
400
The process by which sediments get pressed together
What is Compaction
400
Two types of metamorphic rocks
What is slate, quartzite
500
Three ways in which minerals form
What is organic processes, crystallize from materials dissolved in solutions, crystallize as magma and lava cools
500
What characteristics do geologists observe when studying a rock sample?
What is Mr. Mcculy's reaction
500
Igneous rocks are classified by this.....
What is their origin, texture, and mineral composition
500
List the sequence of processes through which sedimentary rocks form
What is weathering, erosion, deposition, compaction, cementation
500
The process by which metamorphic rock changes igneous rock begins with
What is melting?