Classifying Rocks
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
The Rock Cycle
Random
100
Geologists classify rocks into 3 major groups
What is igneous, sedimentary, and metamorphic
100
Igneous rock that formed from magma and cooled very slowly UNDERNEATH the earth's surface is called ________.
What is intrusive rock
100
These small pieces or particles make up sedimentary rock.
What is sediment
100
This is how metamorphic rocks are created.
What is extreme heat and pressure
100
Magma cools and crystallizes in the cycle forming _______ rock
igneous rock
100
How does metamorphic rock form?
Heat and pressure inside the Earth change existing rock into new rock.
You did it! 1000 points!
200
The type of rock that forms from magma or lava cooling
What is igneous rock
200
This type of rock is formed from lava ON the earth's surface.
What is extrusive rock
200
This type of rock can be found on the streets during the winter in climates where it snows.
rock salt
200
These types of rocks can become metamorphic rocks
What is igneous, sedimentary and other metamorphic rocks
200
Igneous rock transforms to sediment by processes called ___________ & ____________
What is weathering and erosion
200
Which kind of rock can be turned into gneiss?
What is granite?
300
Name something rocks are made up of.
minerals, sediments, magma, lava.
300
Daily Double - An extrusive rock with dark color, fine grains and low silica
Daily Double - What is basalt. 600 points
300
What do mudstone and sedimentary rocks formed from the remains of once-living plants and animals have in common?
What is they are formed from layers of sediment
300
This is a thin rock that was used instead of paper.
What is slate?
300
The layers of sediment become pressed together over time
What is compaction
300
Metamorphic Rocks
Describe a special feature rock that is not porous, such as slate?
What is water can not get through it?
400
build up of sediment
deposition
400
This type of igneous rock is black with a glassy texture. 
What is obsidan
400
formed from the shells, skeletons, and other remains of ancient sea life.
Sedimentary Rocks
400
The texture of a metamorphic rock arranged in parallel layers is called
What is foliated
400
Margo is designing an experiment to investigate the rock cycle. She has written the following steps.
Step 1: Gather shavings from different colors of crayons.
Step 2: Place a small pile of shavings between sheets of waxed paper and press down on them lightly.
Step 3: Place a small pile of shavings between sheets of waxed paper and press down on them with great force.
Step 4: Compare the results produced in Steps 2 and 3.
Which question might Margo be investigating?
What is how does the pressure involved impact the formation of sedimentary rocks?
400
Describe sediment?
What is pieces of rock, sand and dirt?
Hallelujah you earned 800 points!
500
Igneous rock cools very quickly.When it forms the rock crystals could be described as _________.
What is smooth or shiny or no visible crystals
500
This extrusive igneous rock can float in water, and some people use it to clean their feet. It has many air bubbles.
What is pumice
500
Ezra observed a rock that he found at the beach. He concluded that the rock was sedimentary. Which observation best supports this conclusion?
What is the layers within the rock
500
What does metamorphic mean?
What is "to change form"?
500
Daily Double - The processes by which sediments become sedimentary rocks - three words
Deposition, compaction or cementation
500
How does sediment become sedimentary rock?
Sedimentary Rocks
How does sediment become sedimentary rock?
What is sediment deposits in one place and settles in layers. The weight of the sediment squeezes the layers together into rock.