Rocks

Which of the following is a characteristic of minerals?

• Solid

• Crystal structure

• Definite chemical composition

• All of the above

Which of the following substances is a mineral?

• Cement

• Coal

• Quartz

• Glass

The way a mineral reflects light is its .

• streak

• luster

• fracture

• cleavage

Tags

NGSS.MS-PS4-2

The color of a mineral’s powder is called its .

• streak

• luster

• density

• hardness

A mineral that splits apart easily along flat surfaces has the property called .

• cleavage

• fracture

• crystal shape

• hardness

You are a scientist working to identify several known minerals. Which of the following properties could you possibly use to identify minerals?

• color, texture, length, and mineral composition

• color, taste, texture, hardness

• luster, hardness, streak, fracture

• length, color, weight, streak

Rocks found on Earth are generally classified as sedimentary, metamorphic, or igneous. On which basis are these classifications made?

• Where the rocks were formed

• How the rocks were formed

• When the rocks were formed

• Why the rocks were formed

Which of the following statements explains the relationship between rocks and minerals?

• Rocks and minerals are different names for the same thing

• Minerals are found on the Earth’s surface, and rocks are found underground.

• Rocks are found on the surface, minerals are found underground.

• Rocks are made up of one or more types of minerals.

What kind of rock is formed when volcanic lava cools?

• sedimentary

• metamorphic

• igneous

• magma

A rock is formed by extreme heat and pressure.

• metamorphic

• Igneous

• intrusive

• sedimentary