The Rock Cycle
Rocks
Minerals
Types of Rocks
Rocks vs Minerals
100
How are igneous rocks formed?
When hot lava cools down
100
All rocks are made out of....
Minerals
100
How do geologists identify minerals?
Luster, hardness, streak, cleavage, color, size, shape, etc
100
What are the 3 types of rocks?
Igneous, sedimentary, and metamorphic
100
Rocks are made out of minerals. True or False
True
200
What causes rocks to transform into metamorphic rocks?
Heat & Pressure
200
Rock Hardness (4 = hardest, 1 =softest) Rock A 4 Rock B 3 Rock C 2 Rock D 1 Look at the table. Which rock(s) could scratch rock C?
Rock A and B
200
What is Moh's scale used for?
To measure the hardness of minerals
200
Which rock is formed by heat and pressure?
Metamorphic
200
Which one do we use in our every day life? (Ex: salt, graphite in our pencils)
Minerals
300
How do tiny particles, called sediments, become sedimentary rock?
Compaction & cementation
300
How do geologists identify rocks?
color, texture, size, shape, etc
300
When identifying a mineral it is not good to concentrate on
Its color
300
Sandstone is created when layers of tiny grains of sediment harden. What kind of rock is sandstone?
Sedimentary
300
Which one has never been alive? A rock or a mineral?
A mineral
400
What does weathering and erosion do to rocks?
Weathering and erosion wears down rocks into tiny pieces called sediments.
400
How are igneous rocks formed?
By the cooling down of hot lava
400
Mineral A can scratch mineral B, but it can not scratch mineral C. List the minerals in order from hardest to softest.
C, A, B
400
Juan found a new rock by a volcano. What kind of rock is it most likely to be?
Igneous
400
Minerals are made out of rocks. True or false?
False. All rocks are made out of minerals
500
What would happen to a rock if chemicals and rainwater got on it?
It would dissolve
500
How are sedimentary rocks formed?
When tiny particles called sediments compact together in layers
500
Which mineral is the hardest? Which mineral is the softest?
Diamond; talc
500
Lydia found a rock with a fossil in it. Which rock is it most likely to be?
Sedimentary
500
Is diamond a rock or a mineral?
A mineral
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