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100
A ______ is a substance made up of 2 or more elements chemically combined.
What is a compound
100
________ are made of a mixture of minerals.
What are rocks
100
_____________ rocks are formed form heat and pressure.
What is metamorphic.
100
There are _______ classes of rocks.
What is 3.
100
The only rocks formed directly from magma are________.
What are igneous rocks.
200
Moh's scale ranks minerals based on their __________ from 10 to 1.
What is hardness
200
How a mineral's surface reflects light is called __________.
What is luster.
200
Sedimentary rocks are formed from the remains of living things and sediments __________ & __________ together.
What is cemented & compacted
200
When melted minerals cool, _________ rocks are formed.
What are igneous rocks.
200
How can metamorphic rocks change into sedimentary rocks?
By breaking into sediments through weathering and erosion then cementing and compacting together.
300
Gold is both an _________ and a compound.
What is element
300
About three-fourths of Earth's crust is made up of oxygen and ____________.
What is silicon
300
Rocks are formed both in and __________ Earth's surface.
What is under.
300
Magma that reaches Earth's surface is called _________.
What is lava.
300
A cycle is a _________________________.
What is a series of events of that happen over and over again.
400
There are more than 2,000 different kinds of _________ .
What are minerals
400
__________ is the property that allows one mineral to scratch another.
What is hardness.
400
Rocks are made up of _________.
What are minerals.
400
All rocks can be broken down into __________.
What is sediments.
400
How can you test light refraction?
By placing the mineral over text looking for a single or double imagine.
500
Minerals are naturally occurring, inorganic ___________formed from elements or compounds.
What are solids.
500
___________ is the hardest mineral on Moh's scale.
What is diamond.
500
Scientists who study rocks and minerals are called ________.
What is a geologist or petrologist.
500
Name 4 different ways to identify a mineral.
Luster Transparency Reaction with acid Color Hardness Light refraction