Classifying Rocks
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
The Rock Cycle
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. They can be other rocks or plant and animal organisms.
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
What is igneous rock
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.
What is 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
300
________ What are rocks made up of?
What are minerals, sediments, magma, lava.
300
Daily Double - An extrusive rock with dark color, fine grains and low silica
Daily Double - What is basalt.
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 pressing of layers of sediment together over time
What is compaction?
400
What should be replacing the question mark?
What is deposition?
400
This type of igneous rock is black with a glassy texture. 
What is obsidan
400
Formed by the accumulation of dead plant matter or animal remains being cemented together.
What is coal?
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?
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?
(Will accept interlocking)
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 she found at the beach. She 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
What is deposition, compaction and cementation?