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 sediments
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. It forms square crystals.
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
This word means "of fire"
What is igneous?
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
400
What should be replacing the question mark?
What is deposition OR sedimentation?
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 Sedimentary Rocks
400
This specific rock is formed when limestone undergoes heat and pressure and changes the rock. It can be pure white but usually contains impurities which can make it a range of colours.
What is marble
400
The process whereby an organism dies and is quickly covered or buried by sediments.
What is how do fossils form?
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
The processes by which sediments become sedimentary rocks - three words
Deposition, compaction or cementation