Quiz: Rocks and Minerals

1. The process of breaking down of rocks into smaller particles is called:
A weathering
B erosion
C sedimentation
2. Three main rock types are sedimentary, igneous and:
A metamorphic
B laval
C plutonic
3. Sedimentary rocks are formed by the:
A weathering and erosion of rocks
B deposition, compaction and cementing of sediments
C solidification of molten rock such as lava
4. In a river, deposition of sediments occurs most in water flow which is:
A fast
B slow
C turbulent
5. The name given to layers of sedimentary rock is:
A strata
B deposition
C compaction
6. Cementation of sedimentary rocks is the result of the chemical named:
A hydrochloric acid
B calcium carbonate
C sodium chloride
7. Examples of sedimentary rocks are:
A marble, limestone and basalt
B pumicestone and gneiss
C sandstone, shale and conglomerate
8. Limestone is formed from:
A crushed shells or coral
B pebbles of various sizes
C sand
9. Molten rock beneath the earth's surface is:
Alava
Bcrust
Cmagma
10. Igneous rocks that cool deep beneath the earth's surface are:
Aplutonic
Blaval
Cvolcanic
11. Igneous rocks that cool quickly from lava are called:
Aplutonic
Bvolcanic
Cmetamorphic
12. Igneous rocks such as basalt that cools quickly have crystals that are:
Asmall
Blarge
Cnon-existent
13. An example of an igneous rock that cooled slowly beneath the earth's surface is:
Agranite
Bmarble
Csandstone
14. Rocks that were originally either sedimentary, igneous or metamorphic and have been changed further by heat and pressure are called:
Avolcanic
Bsedimented
Cmetamorphic
15. Talc is the softest mineral. The scale used to test hardness of minerals for identification is:
Athe Mercalli Scale
BMoh's Scale
Cthe Richter Scale

 

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