Rocks and Minerals

SELECT MORE THAN ONE ANSWER. What are the different types of rocks?

• Igneous

• Metamorphic

• Sedimentary

Which type of rock is formed when sediments are cemented and compacted together, and looks like chunks with fossils in them?

• Igneous

• Metamorphic

• Sedimentary

Tags

NGSS.MS-LS4-1

Which type of rock is formed from extreme heat and pressure, and looks like it has wavey layers, may have crystals in them.

• Igneous

• Metamorphic

• Sedimentary

Which type of rock is formed from cooling magma and hardening, and looks shiny glass and porous?

• Igneous

• Metamorphic

• Sedimentary

Rocks can change form one type of rock to another and back again.

• False

• True

What are rocks classified by?

• Their age

• Where they are found

• Their looks

• The processes they are formed by

(a)   is the hardest known mineral.

(a)   is one of the better properties of minerals to use for identifying a mineral.

How many different types of minerals are there?

• About 2,000

• 3,000

• About 4,000

• 5,000

SELECT MORE THAN ONE ANSWER. What are some physical properties of minerals?

• Hardness

• Color

• Luster