Rocks and minerals

What's the difference between a rock and a mineral?

• A rock is made up of some minerals.

• A mineral is made up of some rocks.

• A rock has many colours.

• A mineral has only one colour.

Marble (mármol) is  a _________________________ rock because it suffered changes in its structure due to heat or pressure. 

• sedimentary

• metamorphic

• igneous

Sandstone (arcilla) is a ______________________ rock because it was formed from the accumulation an compaction of sediments. 

• metamorphic

• sedimentary

• igneous

Basalt is a _____________________ rock because it was formed when magma cooled and solidified. 

• metamorphic

• sedimentary

• igneous

A _________________ is composed of silicon, oxygen and other elementss. 

• carbonate

• silicate

• oxyde

A _________________ is formed by carbon, oxide and a metal. 

• silicate

• carbonate

• oxide

An _________________ is formed by oxygen and a metal. 

• silicate

• carbonate

• oxide

A mineral ishard when it is difficult to scratch.

• True

• False

One of them is NOT a property of minerals.

• luster

• hardness

• fracture

• rigidity

Uses of minerals.

• Construction

• Industry

• Agriculture

• All of them are correct.