Rocks and Fossils Quiz

What is a mineral according to geologists?

• A solid substance made of one or more simple chemicals

• Any material taken from the earth

• A substance formed from living things

• A type of vitamin

What is limestone mainly composed of?

• Quartz

• Feldspar

• Graphite

• Calcite

What makes diamond and graphite different?

• They are made of different elements

• They have different atomic arrangements

• They are found in different locations

• They are both transparent

What is a gemstone?

• A type of metal

• A type of ore

• A type of rock

• A mineral that can be cut and polished

What is required for a mineral to be called an ore?

• It must be present in large enough deposits

• It must be rare

• It must be transparent

• It must be beautiful

What are the two most common elements in Earth’s crust?

• A oxygen and silicon

• B silicon and nitrogen

• C hydrogen and oxygen

• D nitrogen and hydrogen

Which sentence best describes the relationship between rocks and minerals?

• A Minerals are harder forms of rock.

• B Rocks are usually made of minerals.

• C Rocks are minerals that form in Earth’s crust.

• D Minerals are rocks that can be cut and polished

What are the three basic types of rock?

• A extrusive, intrusive, and clastic

• B crystals, gemstones, and minerals

• C limestone, stalactites, and stalagmites

• D igneous, sedimentary, and metamorphic

The process of old rocks breaking down and new rocks being created is known as the rock —

• A cycle

• B erosion

• C foliation

• D deposition

What is a layer of rock called?

• A strata

• B magma

• C mineral

• D sediment