Rocks and Minerals Quiz

What is the hardness of a mineral?

• Its ability to resist scratching

• The color of the powder left on a streak plate

• How light is reflected from the surface

• The ability to break along preferred planes

What is luster?

• How light is reflected from the surface of a mineral

• The ability of a mineral to break along preferred planes

• The color of the powder left on a streak plate

• The aspect of things caused by differing qualities of light

What is cleavage?

• The ability of a mineral to break along a flat surface

• When a mineral breaks unevenly

• The color of the powder left on a streak plate

• How light is reflected from the surface of a mineral

What is the color of the powder left on a white or black plate called?

• Streak

• Cleavage

• Luster

• Fracture

What is a geologist?

• A scientist who studies the Earth and its materials

• A solid material found in nature that has never been alive

• A naturally occurring solid made up of a mixture of minerals and sometimes remains of living things

• Material carried by water or wind and deposited somewhere else

What are the three categories of rock?

• Sedimentary, Igneous, and Metamorphic

• Properties, Shape, and Minerals

• Magnetic, Hardness, and Color

• Cleavage, Fracture, and Streak

How do sedimentary rocks form?

• Layers of rock particles, sand, shells, and other materials get pressed together

• MAGMA or LAVA cools and hardens

• Underground rocks are changed due to heat and pressure

• Material carried by water or wind and deposited somewhere else

What can sometimes be found in sedimentary rocks?

• Fossils, shells, or remains of living things

• The inner core

• MAGMA or LAVA

• Underground rocks changed due to heat and pressure

How do igneous rocks form?

• MAGMA or LAVA cools and hardens

• Layers of rock particles, sand, shells, and other materials get pressed together

• Underground rocks are changed due to heat and pressure

• Material carried by water or wind and deposited somewhere else

How do metamorphic rocks form?

• Underground rocks are changed due to heat and pressure

• Layers of rock particles, sand, shells, and other materials get pressed together

• MAGMA or LAVA cools and hardens

• Material carried by water or wind and deposited somewhere else