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1.7 ROCKS AND THEIR USES

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Completa el texto sobre los apuntes de la unidad 1.7. Cuándo termines un texto y le des a comprobar te pasará al siguiente texto.

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biología 1º e.s.o. fecsjv Âge recommandé: 12 ans
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1.7 ROCKS AND THEIR USES

Completa el texto sobre los apuntes de la unidad 1.7. Cuándo termines un texto y le des a comprobar te pasará al siguiente texto.

Gonzalo Alonso Leiro
1

bottom mountains the oceans made crust of part minerals highest earth

Minerals and rocks form . The ground we walk on , the and the of the are all of .

2

that crystal composition structures definite ordere occurs mineral aggregates solid naturally

Rocks are . A mineral is a and has a , and that are well

3

crystal mineral aggregates monomineralic rocks example

Rocks formed by of just one are called . An is marble .

4

other conglomerates sandstones rocks

Rocks made of fragments of are known as and .

5

eye few key naked criteria

To identify rocks with the , we need a based on a of :

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certain see microscope features heterogeneous crystals homogeneous structure fragments acid appear CO2 sheets react small factor acid factor physical heterogeneous stripes rocks

1 . Does it to be or ?
Appearance is a , but it would look under a .

2 . Is it made of or , or are they too to ?

3 . How does its look ?
Does it have , or other ?

4 . Does it with ?
Only react with . The determining is .

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to other cools originated conditions rocks temperatures transformation Volcanic melting magma pressure rocks effect from wind subjected transformed rocks sedimentary cementation solidifies reaching Plutonic compaction interior magmatic going high melted sediments water process

Types of rocks :

1 . Igneous or : These are when ( rocks ) Earth ? s and .
a . ( intrusive ) rocks .
b . ( extrusive ) rocks .

2 . Sedimentary . Because of the or , break in that are to be after a of and in .

3 . Metamorphic . Formed by the of and / or , without a state .

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through type transformed goes rock into rock different processes processes series transform slowly type rock years millions

The rock cycle

The rock cycle is a of that a to another of .
Any rock can be into of . These occur very , over of .

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air sediments formed transport erosion chemical rocks changes minerals rocks ice surface water in change agents Weathering or fragmentation fragmentation

Rocks change very slowly

( wind and water / rain ) . Can cause in the that the can the ( ) weathered materials ( ) travel in , the or in . This causes ( + ) .

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