Name and explain one of the most common methods of fossilization that causes the remains of organisms to be altered.
Perminerlization- when minerals from water or the ground enter the pores of dead plants or animals. These minerals harden the remains and turn into stone.
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15
What are the 3 main types of rocks?
Sedimentary, Metamorphic and Igneous
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lifesaver
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fairy
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rocket
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banana
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15
What is stratigraphy?
The study of layers of rocks to determine geological timelines.
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15
What are fossils?
Remnants or imprints of organisms that are naturally preserved in stone.
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15
What is the difference between magma and lava?
Magma is molten rock found under ground, Lava is molten rock found above the Earth's surface.
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15
How are metamorphic rocks formed?
When heat and pressure are applied to layers of rocks found deep underground.
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15
What is the process of preserving organisms in stone called?
Fossilization
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15
How are Igneous rocks formed?
When rocks melt because of extreme heat and then cool and become hard.
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What are the layers of rocks called?
Strata
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15
How are sedimentary rocks formed?
When tiny pieces of rocks & dirt get blown/washed away from mountains and sink to the bottom of lakes/oceans, creating layers that squeeze together overtime.
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15
What are the 3 characteristics of index fossils?
Index Fossils must be widespread, abundant and short-lived.
