Rocks and minerals 4th grade

Front

What is the most effective way to identify minerals?

Back

Using a hardness test is more effective than color.

Front

What objects can be used to test for hardness?

Back

A fingernail, a copper penny, a paper clip, a nail, and a piece of glass.

Front

What is hardness in terms of minerals?

Back

The ability of a mineral to resist being scratched.

Front

What is a mineral?

Back

A solid natural material that has a crystal form and its own set of properties.

Front

What type of rocks are formed from sediments that are pressed together?

Back

Sedimentary rocks.

Front

What are igneous rocks?

Back

Rocks formed from cooled and solidified magma or lava.

Front

What are metamorphic rocks?

Back

Rocks that have been changed by heat, pressure, or chemical processes.

Front

What is luster in minerals?

Back

The way a mineral reflects light, which can be described as shiny or dull.

Front

What is cleavage in minerals?

Back

The tendency of a mineral to break along flat surfaces.

Front

What is the Mohs scale?

Back

A scale used to measure the hardness of minerals.