Rocks and Minerals

Which of the following is a characteristic of all minerals?

• Crystalline structure

• Fills the shape of its container

• Usually organic

• Random chemical composition

Which of the following is NOT a way to identify a mineral?

• Streak

• Denisty

• Luster

• Crumble

What is fracture?

• Ability to reflect light

• A break in parallel planes

• Uneven break

Igneous rocks are formed from geysers in the Earth's crust.

• True

• False

Two types of igneous rocks are:

• Interior and exterior

• Intrusive and extrusive

• Inside and outside

• Enter and exit

The process for sedimentary rocks DO NOT include:

• Cementation

• Cooling

• Deposition

• Erosion

Which type of rock results from melting and cooling of magma?

• Igneous

• Metamorphic

• Sedimentary

• Extrusive

Which type of rock forms from extreme heat and pressure?

• Igneous

• Sedimentary

• Organic

• Metamorphic

A metamorphic rock changes into an igneous rock by what two processes?

• Melting and cooling

• Extreme heat and pressure

• Compaction and cementation

• Weathering and erosion

This rock was found near the mouth of a volcano. What type of rock is this?

• Sedimentary

• Igneous

• Metamorphic