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Questions and Answers
What is pressure?
What is pressure?
Force that pushes against an object.
Heat inside the Earth bakes rocks and changes the minerals in them.
Heat inside the Earth bakes rocks and changes the minerals in them.
True (A)
Why are metamorphic rocks called changed rock?
Why are metamorphic rocks called changed rock?
Because minerals in rocks go through a chemical change when they are heated up.
At what temperature do minerals chemically change?
At what temperature do minerals chemically change?
At what temperature do rocks melt into magma?
At what temperature do rocks melt into magma?
Great pressure inside the Earth changes the ____________ of minerals.
Great pressure inside the Earth changes the ____________ of minerals.
Igneous and sedimentary rocks can be changed into metamorphic rocks by__________________.
Igneous and sedimentary rocks can be changed into metamorphic rocks by__________________.
Minerals in deeply buried rocks are flattened by great______________.
Minerals in deeply buried rocks are flattened by great______________.
The minerals in rocks can be changed by the heat and chemical solutions in_____________________?
The minerals in rocks can be changed by the heat and chemical solutions in_____________________?
Pressure is a ______________that pushes against an object.
Pressure is a ______________that pushes against an object.
When rocks are heated, the minerals in the rocks go through a _______________change.
When rocks are heated, the minerals in the rocks go through a _______________change.
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Study Notes
Metamorphic Rocks Formation
- Metamorphic rocks are known as "changed rocks" due to the alteration of minerals when exposed to heat and pressure.
- Heat within the Earth is a significant factor, causing rocks to undergo mineral changes, typically occurring between 100°C and 800°C.
- Rocks begin to melt into magma at temperatures exceeding 800°C.
- Great pressure inside the Earth also affects rocks, altering the form of minerals and resulting in a flattened texture for those buried deep underground.
- Both igneous and sedimentary rocks can transform into metamorphic rocks when subjected to heat and pressure.
- Chemical changes in minerals can occur when rocks are heated, influenced by surrounding magma and chemical solutions.
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