Soil Profile

All soils begin with what process?

• Nutrients
• Subsoil
• Weathering
• Fertile

Which layer of soil is on bottom?

• Topsoil
• Sand
• Bedrock

There are FOUR components of soil: water, air, organic material, and ________.

• conservation
• rock
• subsoil
• loamy

What is HUMUS made from?

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

Soil horizon is horizontal. Soil profile is _______?

• Cake
• Vertical
• Strawberry Filling
• A picture

Which word means to rot or decompose?

• Decay
• Fertile
• Growth
• Nutrients

Fertile soil is rich in _________.

• Conservation
• Bedrock
• Water
• Nutrients

Ellen grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What part of the topsoil most likely made the topsoil feel gritty?

• clay
• sand
• silt
• humus

Which of the following best describes soil erosion?

• A.  the breakdown of soil 
• A.  the improvement of soil
• A.  the addition of soil
• A.  the movement of soil by wind or water

Which type of soil can hold the greatest amount of water?

• sand
• silt
• clay
• loam