Topic 4 Lesson 3 Rocks, Minerals, and Soil

Front

What are metamorphic rocks?

Back

Rocks that have changed form due to heat and pressure.

Front

How do metamorphic rocks form?

Back

When heat and pressure act on existing rocks, causing them to change.

Front

What is soil?

Back

A mixture of minerals, organic matter, air, and water that supports plant life.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

How do sedimentary rocks form?

Back

They form as sediment collects in layers that become stuck together.

Front

What is a mineral?

Back

A naturally occurring, inorganic solid with a definite chemical composition and crystal structure.

Front

What is the definition of streak in minerals?

Back

The color of the powder left when a mineral is rubbed on a plate.

Front

What is cleavage in minerals?

Back

The tendency of a mineral to break along flat surfaces.

Front

What is the difference between igneous and sedimentary rocks?

Back

Igneous rocks form from cooled magma or lava, while sedimentary rocks form from compressed sediments.

Front

What is the rock cycle?

Back

The continuous process of rock formation and transformation between igneous, sedimentary, and metamorphic rocks.