Rocks and Weathering Pt.1
Rocks and Weathering Pt.2
How Soil Forms Pt.1
How Soil forms Pt.2
100

The process of wearing down and carrying away rocks.

What is Erosion?

100

The process in which water squeezes in through rock cracks,freezes,then thaws. Repeating until the rock breaks off.

What is Frost wedging or Freezing and Thawing?

100

The loose weathered material on Earth's surface in which plants grow.

What is Soil?

100

The measure of how well the soil supports growth.

What is Fertility?

200

The process that breaks down rock and other substances

What is Weathering?

200

The weathering of rock by dissolving many rock particles at a time.

How does water weather?

200

The solid layer of partly weathered rock beneath the soil.

What is Bedrock?

200

A crumbly dark brown soil that is a mixture of humus,clay,and other materials.

What is Topsoil?

300

The type of weathering in which rock is physically broken into smaller pieces.

What is Mechanical Weathering?

300

The process where iron combines with oxygen in the presence of water.

What is Oxidation?

300

Decaying organic material in soil that forms as plant and animal remains decay.

What is Humus?

300

Soil that contains of clay and other particles of rock but little humus.

What is Subsoil?

400

The second type of weathering that breaks down rock through chemical changes.

What is Chemical Weathering?

400

When a rock is full of tiny connected air spaces that allow water to seep through it.

What is a Permeable rock?

400

The scale that measures acidity.

What is the pH scale?

400

The organisms that break down the remains of dead organisms into smaller pieces and  digest them with chemicals.

What are Decomposers?

500

Geologists make inferences based on _______

Uniformitarinism

500

The wearing away of rocks by rock particles carried by water,ice,wind,or gravity.

What is Abrasion?

500

Soil that is made up of equal parts of clay,sand,and silt.

What is Loam?

500

holds soil in place

The role that grasses play in conserving the soil.

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