Chapter 8 Lessons 2&3 Flashcards

0
Q

Volcanic glass

A

Rock that forms when lava cools too quickly to crystals

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1
Q

Extrusive rock

A

When volcanic material erupts and cools and crystallizes on Earth’s surface, it forms a type of igneous rock

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2
Q

intrusive rocks

A

Igneous rocks that form as magma cools unground

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3
Q

Compaction

A

The weight from the layers of sediment forces out fluids and decreases the space between grains during a process

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4
Q

Cemetation

A

When minerals dissolved in water crystallize between sediment grains

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5
Q

Clastic rock

A

Sedimentary rocks that are made up of broken pieces of minerals and rock fragments

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6
Q

Clasts

A

These are the broken pieces and fragments

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7
Q

Chemical rocks

A

Form when minerals crystallize directly from water

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8
Q

Biochemical rock

A

Sedimentary rock that was formed by organisms or contains the remains or organisms

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