Types of Rocks
Minerals
The Earth
Weathering and Erosion
Gemstones and Other Facts
100

This is a hard, natural substance made of one or more minerals that contain organic materials.

What is a rock?

100

This is an inorganic substance found naturally in the earth.

What is a mineral?

100

The center of the earth.

What is the core?

100

This historic event contributed to erosion.

What is the Flood?

100

This is a substance made of things that were never alive.

What is inorganic?

200

This is a rock that forms when layers of sediment and organic material harden.

What is sedimentary?

200

This is the way a mineral reflects light.

What is luster?

200

The thin outer layer of the earth.

What is the crust?

200

This is the movement of sediment from one place to another.

What is erosion?

200

This person studies the structure, rocks, and minerals of the earth.

What is a geologist?

300

This rock is formed from magma or volcanic lava

What is igneous?

300

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

What is a streak?

300

Most of the earth’s mass is in this place.

What is the mantle?

300

This causes the wearing down of rock.

What is weathering?

300

These are beautiful and rare are called precious stones.

What are gemstones?

400

This rock is formed by heat and pressure deep below the earth’s crust.

What is metamorphic?

400

This is the characteristic of a mineral to break along smooth, straight lines or into flat sheets.

What is cleavage?

400

This is where minerals are usually found.

What is minerals are found on the surface of the earth or buried in the earth’s crust in rocks or in veins.

400

Name one thing that causes weathering.

What is water or wind?

400

This is done to test the hardness of a mineral.

What is a scratch test?

500

A rock-like substance that forms from

decayed plant matter.

What is coal?

500

This scale is used to determine the hardness of a mineral.

What is a Mohs scale?

500

This explains how the Flood could have contributed to the formation of sedimentary rock.

What is the waters of the Flood could have stirred up great amounts of dirt and particles that would settle into layers as the water receded.

500

This in class activity was an example of weathering.

What is the Sugar Shake lab?

500

The name of metals found in minerals.

What is ores?