Layers of the Earth
Found in Nature
Mineral Characteristics
Types of Rocks
Rocks & Minerals
100

The center of the Earth is called....

What is the core?

100

An inorganic substance found naturally in the Earth is called...

What is a mineral?

100

When a mineral breaks along smooth, straight lines or into flats sheets is called...

What is cleavage?

100

The three categories that geologists use to classify rocks are...

What is igneous, metamorphic and sedimentary?

100

Rock that forms when layers of sediment and organic material harden is called...

What is sedimentary?

200

The thin outer layer of the Earth is called...

What is the crust?

200

A substance made of things that were NEVER alive is...

What is inorganic?

200

The color of the mark made when a mineral sample is rubbed on a harder surface is called...

What is streak?

200

A type of metamorphic rock...

What is slate?

200

Rock formed from magma or volcanic lava is called...

What is igneous?

300

Most of the Earth's mass is in the...

What is the mantle? 

300

The loose material on the surface of the Earth in which plants can grow...

What is soil?

300

The way a mineral reflects light is called...

What is luster?
300

A type of sedimentary rock...

What is limestone?

300

A rock like substance that forms from decayed plant matter...

What is coal? 

400

The hottest layer of the Earth is called...

What is the core?
400

A hard natural substance made of one or more minerals that contain organic materials is called...

What is a rock?

400

The ability of a mineral to resist scratching is called...

What is hardness?

400

A type of igneous rock...

What is obsidian?

400

The movement of sediment from one place to another is called...

What is erosion?

500

The parts that make up the crust are called...

What are plates? 

500

A scientist that studies the structure, rocks and minerals of the Earth is called...

What is a geologist? 

500

A mineral that can be cut and polished for us is called...

What is a gemstone?

500

Rock formed by heat and pressure deep below the Earth's crust is called...

What is metamorphic?

500

The hot melted rock that makes up the mantle of the Earth is called...

What is magma?