Soil

What is Weathering

• Rock particles flowing through the air.

• Process that breaks down rocks to create soil.

• The weatherman telling the weather for the week.

• Wind.

How long does weathering take.

• Many Years

• A few days

• several months

• six weeks

What TWO things does soil, as a natural resource, provide for plants?

• Bedrock for Protection

• Support for roots to grow

• Nutrients to stay healthy

• Energy to make food

A student planted sunflower plants in different components of soil. In which components of soil will the plant have the most nutrients?

• Clay

• Humus

• Sand

• Rock Particles

Bugs and insects need soil to ________

• Provide support for trees to grow

• Provide shade from the sun

• Provide a habitat for them to live

• Give small streams water they need to flow

Which soil component consists of small grains of worn-down rock, has few nutrients, and does not hold water well?

• Parent Rock

• Clay

• Bedrock

• Sand

What are these examples of?

1. How to slow soil erosion

2. Rotating Crops Increases Nutrients

3. Creating a Compost Heap

• Animals in Virginia

• How Subsoil is Created

• Soil Conservation

• Four components of soil

Humus can be described as...

• A layer of soil full of large rocks and minerals

• Tiny particles of soil that hold water well

• The movement of soil from one place to another

• Decayed matter in the soil

Materials that plants and animals need to live and grow are called -

• Particles

• Organisms

• Adaptations

• Nutrients

Which component of soil is made up of very small broken pieces of rock with particles larger than clay and smaller than sand?

• Silt

• Bedrock

• Humus

• Compost