Geology Basics Quiz

What are rocks made up of?

• Living organisms

• Pure, naturally occurring, non-living crystalline materials

• Water and air

• Organic matter

Which of the following is an example of an element?

• Water

• Salt

• Copper

• Sugar

What is the Mohs Hardness Scale used to determine?

• The color of minerals

• The weight of minerals

• The hardness or "scratchability" of minerals

• The size of minerals

Who developed the Mohs Hardness Scale?

• Isaac Newton

• Friedrich Mohs

• Albert Einstein

• Marie Curie

Which mineral is the hardest according to the Mohs Hardness Scale?

• Talc

• Gypsum

• Quartz

• Diamond

What is the hardness of Talc on the Mohs Hardness Scale?

• 10

• 5

• 1

• 7

What are the characteristics of crystals?

• Occur naturally and have straight edges, flat sides, and regular angles.

• Are always round and smooth.

• Only occur in liquid form.

• Have irregular shapes and angles.

In what variety do crystals come?

• Only one shape.

• A variety of different shapes.

• Only spherical shapes.

• Only cubic shapes.

What is the hardness value of the porcelain tile used in the streak test?

• 5

• 6

• 7

• 8

What is the purpose of using a porcelain tile in the streak test?

• To measure the weight of the mineral

• To identify the color of the streak left by the mineral

• To determine the size of the mineral

• To test the mineral's temperature