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Science > Igneous, sedimentary and metamorphic > Flashcards

Igneous, sedimentary and metamorphic Flashcards

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0
Q

Why are sedimentary rocks valuable?

A

For fossil fuels and building construction

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1
Q

What’s the most common rock on earth?

A

Basalt

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2
Q

Why don’t we use igneous rocks for fossil fuels?

A

Igneous rocks are highly flammable

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3
Q

What is the only rock that floats?

A

Humus

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4
Q

What is heating the core of the earth?

A

Decaying uranium gears the core and melts rock

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5
Q

What are intrusive rocks?

A

Igneous rock inside the earth

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6
Q

What are extrusive rocks?

A

Igneous rocks on the earth

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7
Q

Slow cooling rate will produce

A

Big crystals

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8
Q

Fast cooling rate will provide

A

Small crystals

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9
Q

What size crystals do Intrusive rocks have?

A

Big crystals

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10
Q

What size crystals do extrusive rocks have?

A

Small crystals

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11
Q

What happens when rain water combines with CaCO3?

A

It creates carbonic acid

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12
Q

What does carbonic acid do to limestone?

A

It dissolves the rock

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13
Q

The process if dissolving rock is called?

A

Dissolution

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14
Q

What is Archimedes principle and what is it used for ?

A

An object in water will displace it’s exact volume, used to find volume and density

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15
Q

What is the common name for oxidation?

A

Rust

16
Q

When rocks get tumbled down a stream and hit one another this is called?

A

Abrasion

17
Q

Is magma extrusive or intrusive?

A

Intrusive

18
Q

Is lava extrusive or intrusive?

A

Extrusive

19
Q

The earths crust is mainly composed of this rock

A

Granite

20
Q

What type of rock would we be discussing foliation and what is it?

A

Metamorphic , and when rocks melts and the minerals settle out into layers

21
Q

What is the real word for bubble?

A

Effervescence

22
Q

This type of topography is a function of dissolution

A

Karst

23
Q

What type of sedimentary rock would form from evaporating sea water?

A

Gypsum

Science (4 decks)

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