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Classifying Rocks
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
The Rock Cycle
100
To study a rock sample, geologists observe what? A. Mineral composition B. Color C. Texture D. All of the above
D. All of the above
100
Igneous rocks are classified by their: A. Origin B. Texture C. Mineral Composition D. All of the above
D. All of the above
100
Small, solid pieces of material that comes from rocks or living things is called what?
Sediment
100
Metamorphic rocks are formed from another rock by what two forces? A. Freezing and Compaction B. Heat and Pressure C. Pressing and Erosion
B. Heat and Pressure
100
True or False. The rock cycle is a slow sycle that builds, destroys and changes rocks in the crust.
True
200
A generally light colored rock that has a high silica content.
Granite
200
Igneous rock that forms from lava that erupted ONto Earth's surface is called what?
Extrusive Rock
200
Rocks on Earth's surface are constantly being broken up and carried away by what two processes?
Weathering & Erosion
200
True or False. Metamorphic rocks can form out of igneous, metamorphic and sedimentary rocks.
True!
200
Name the next step. Igneous rock ----> Weathering & Erosion ----> ? A. Lava B. Sediment C. Metamorphic Rock
B. Sediment
300
A dark colored rock that has a low silica content.
Basalt
300
Igneous Rock that forms from magma hardened BENEATH the Earth's surface is called what?
Intrusive Rock
300
The process that PRESSES sediments together is called what?
Compaction
300
What is the term for thin, flat layering found in most metamorphic rocks.
Foliated
300
When you add heat and pressure to any kind of rock, what kind of rock will you get?
Metamorphic Rock
400
Rocks with grains that are large and easy to see are ___________ grained?
Coarse
400
Rapidly cooling lava forms _________ grained igneous rocks with _________ crystals A. Fine, small B. Coarse, large
A. Fine, small
400
Put these processes in the correct order. A. Compaction B. Deposition C. Weathering D. Cementation E. Erosion
Weathering Erosion Deposition Compaction Cementation
400
Nonfoliated refers to mineral grains that are arranged _____________? A. randomly B. In layers
A. randomly
400
When magma or lava cools, for example, under the ocean, what kind of rock do you get?
Igneous Rock
500
Name the 3 groups of rocks.
Igneous, Sedimentary and Metamorphic
500
Mineral Composition determines a rocks color. True or false?
True!
500
What are the 3 major types of sedimentary rocks? A. clastic, organic, chemical B. Intrusive, inorganic, solid C. clastic, textured, pink
A. clastic, organic and chemical
500
Marble has an even __________, which makes it easy to cut for building. A. Color B. Grain C. Hardness
B. Grain
500
What is an example of the rock cycle? A. A mountain eroding into sediment, carried away by a stream. B. Building a table out of granite C. Putting rocks in your fish tank
A. A mountain eroding into sediment, carried away by a stream.