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Rocks
Rocks
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8th Grade Earth Science
Flashcards
37 cards
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Practice quiz
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Questions
37
Answers
1
What is the process called when sediments are deposited at the bottom of a lake?
Weathering
Deposition
Erosion
Cementation
2
What size crystals does an intrusive igneous rock have?
Large
Medium
None
Small
3
What is the most common sedimentary rock?
Sandstone
Fossil Limestone
Bituminous
Coqiona
4
What is the process or rock type in number 8?
Weathering and Erosion
Melting
Heat and Pressure
Cooling and Crystallizing
5
What is the hardest metamorphic rock?
Sandstone
Quartzite
Shale
Slate
6
Which sedimentary rock is another variety of coal?
Bituminous
Limestone
Travertine
Dolomite
7
Where does pumice form?
Air
Water
Earth's Surface
Deep underground
8
Everything is the same between Rhyolite and Basalt except for what?
Density
Where they formed
Color
Crystal size
9
What is the name of the acid that reacts with calcium carbonate?
Hydrocortisone
sulfuric
Bicarbonate
Hydrochloric
10
What is the process or rock type in number 10?
Compacting and Cementing
Weathering and Erosion
Heat and Pressure
Melting
11
What is the process or rock type in number 5?
Sediments
Melting
Weathering and Erosion
Cooling and Crystallizing
12
What is the process or rock type in number 1?
cooling and crystallizing
compacting and cementing
heat and pressure
melting
13
If you find a rock made of pebbles, what kind of sedimentary rock is it?
Chemical
Clastic
Organic
Extrusive
14
How do igneous rocks form?
Cementation
Lithification
Heat and Pressure
Cooling of magma and lava
15
What process breaks rocks down into sediments?
Erosion
Weathering
Deposition
Cementation
16
Where does obsidian form?
Deep underground
Water
Earth's Surface
Air
17
What process creates sedimentary rocks?
Weathering
Cementation
Deposition
Erosion
18
What is the process or rock type in number 13?
Igneous Rock
Metamorphic Rock
Heat and Pressure
Cooling and Crystallizing
19
What is the process or rock type in number 9?
Cooling and Crystallizing
Melting
Weathering and Erosion
Heat and Pressure
20
What is the process or rock type in number 2?
heat and pressure
sedimentary rock
cooling and crystallizing
igneous rock
21
What is the process or rock type in number 11?
Weathering and Erosion
Cooling and Crystallizing
Compacting and Cementing
Melting
22
What is the process or rock type in number 4?
Sedimentary Rock
Magma
Melting
Cooling and Crystallizing
23
What is the process or rock type in number 12?
Sedimentary Rock
Igneous rock
Sediments
Metamorphic Rock
24
If you find a rock that reacts acid, what type of sedimentary rock is it?
Organic
Clastic
Chemical
Intrusive
25
Where is lava found?
Above ground
Underground
26
What is the most common extrusive igneous rock?
Obsidian
Red Granite
Basalt
Scoria
27
A ___ is a pure substance and a ___ is a mixture.
mineral; rock
mineral; metal
rock; mineral
rock; metal
28
How does a metamorphic rock form?
Lithification
Cooling of magma and lava
Cementation
Heat and Pressure
29
What is the process or rock type in number 3?
heat and pressure
weathering and erosion
sedimentary rock
igneous rock
30
What kind of rock can turn into a metamorphic rock?
Igneous
Metamorphic
All of them
Sedimentary
31
What is the process or rock type in number 7?
Cooling and Crystallizing
Weathering and Erosion
Heat and Pressure
Melting
32
What is the process or rock type in number 14?
Sediments
Magma
Sedimentary Rock
Igneous Rock
33
Why is Gneiss considered a foliated rock?
It is full of holes
It has bands of flattened crystals
It has layers of sediments
It has large, rounded crystals
34
A lot of sedimentary rocks are made out of, or cemented together by this chemical:
Calcium Carbonate
Copper Sulfate
Benzyl Chloride
Hydrochloric Acid
35
What is granite made of?
Magma
Lava
36
What process carries rock away (Ex. down a river)
Weathering
Erosion
Deposition
Cementation
37
If you find a rock with fossils in it, what kind of sedimentary rock is it?
Organic
Chemical
Clastic
Intrusive
