Unit 7 questionnaire. Minerals and rocks

Minerals are always... (2 options are correct)

• Organic

• Solid

• Natural

• Aggregates of one or more minerals

Which of the following substances are minerals?

• Granite

• Quartz

• Sandstone

• Gold

Which conditions are needed to form big crystals?

• A short period of time

• Medium temperature

• Low pressure

• Calm environment

Take a look at the Mohs' scale. We want to identify a mineral that can be scratched with our nail. Could it be fluorite? Why?

What hardness will a mineral have it we can scratch it with a knife?

Sedimentary rocks are...

• formed of sediments

• formed when magma cools and solidifies

• formed in areas under high temperature and pressure

Igneous rocks can be...

• detritus

• volcanic

• plutonic

Metamorphic rocks can be form from another kind or rock. Which one?

• Only from sedimentary

• Only from igneous

• Only from other meramorphic

• From either sedimentary, igneous or other metamorphic rocks

Select the right sentence:

• Minerals are made of rocks

• Rocks are made of minerals

How are sedimentary rocks, such as shale and sandstone, fomed?

• Particles are compressed into layers

• Particles are changed into liquid

• Particles are melted by magma

• Particles are heated by the Sun