WEDS 2017

The process by which water, ice, wind or gravity moves weathered rock and soil from one place to another.

• weathering
• erosion
• deposition
• dumptruck

This type of weathering occurs when rock is physically broken down into smaller pieces of rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

This type of weathering occurs when rocks weaken then break down due to chemical changes in the composition of the rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

All soils begin with what process?

• Nutrients
• Subsoil
• Weathering
• Fertile

Which layer of soil is on bottom?

• Topsoil
• Sand
• Bedrock
• parent material

What is HUMUS made from?

• Chick-Peas
• The remains of decayed plants and animals
• Beans
• Cheese

Wind blowing dirt and sand through the air is an example of...

• weathering 
• erosion
• deposition
• chemical weathering

Water gets into the cracks of rock and freezes, causing the rock to break.  What is this an example of?

• erosion
• deposition
• mechanical weathering
• chemical weathering

Soil is made of

• weathered rocks and minerals
• dead plants and animals
• air and water
• all of the above

The top layer of soil is called ________.

• bedrock
• topsoil
• subsoil
• grass