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WorksheetsRocks and Minerals
Total questions: 24
Worksheet time: 14mins
Why do geologist use the Mohs hardness scale for?
Relative Hardness.. ( not an absolute)
Rub on unglazed surface
The streak test
Luster means to reflect light.
True
False
Minerals can be classified as ?
Physical Properties
Streak color
Luster
Fracture
Whaaat does Cleavage mean.?
Reaction to acid
Color of crushed powder
To split
Glassy
What does weathering mean?
Dropping off sediments
Rocks getting layered
The braking down
Getting squeezed
What does cementation mean?
Squeezing sediments together.
Allowing metals into earth core
Layered rock
Sticks sediments together
What is metamorphic rock
Formed by heat and pressure
Layered sediments
Sediments being broken down
Cementation
What is igneous rock
Unique combo of solid minerals
Magma heats undergound
Rocks all change
Sticks sediments together
What is a mineral comp
A unique combo of soild elements and compounds that make up a mineral.
Earth was partly molten; allowing dense metals sink to the core
Change from one rock to another
Molten rocks or magma
What mineral is the hardest
Talc
Flourite
Diamond
Calcaite
What is the least hardest mineral
Talc
Feld spar
Quartz
Topaz
How do you test a color streak.
Look on the scale
Rub the rock on a unglazed surface
See if. It splits in half
What are minerals.
Minerals are solid, inorganic substances that occur naturally
Minerals are eaisily identified by viewing
Or of crushed powder
Hat does heat and pressure mean
Changing variables due to weight and overlaying rocks
Layers that form a rock
Forms deep under ground
The way a mineral breaks.
What is fracture
Reaction to acid
A. Way that minerals breaks
Mohs hardness scale
Luster
Streak color is color of crushed powder.
True
False
What is erosion.
Sediments getting squeezed
Rocks getting broken down
Sediments getting carried away by wind and water
Sediments sticking to together
What is the rock cycle
Earths rocks change from one type into another
Melted rocks
Unique combo of solid element
What is the second hardest Mineral
Calcaite
Flourite
Gypsum
Topaz
Which mineral I has the most hardness.
Corundum
Topaz
What is the fifth hardest mineral
Feldspar
Quartz
Talc
Apatite
Which mineral has the least hardness.
Feldspar
Quartz
Diamond
Topaz
Calcaite
What does the scale is a relative scale mean
A mineral will scratch any substances lower on the scale
Rub a rock on a unglazed surface
What is color
Acid test
Streak color test
Easily identifies by viewing
Hardness scale
