Presentation on theme: "Soil Analysis Lab Purpose: 1) To examine, discover, and compare the physical and chemical properties of soil. 2) Discover whether your soil meet the requirements."— Presentation transcript:
Soil Analysis Lab Purpose: 1) To examine, discover, and compare the physical and chemical properties of soil. 2) Discover whether your soil meet the requirements needed to grow broccoli.
Review Soil Top layer of Earth’s surface Soil is made up of minerals, organic matter, air, and water.
Review Soil’s Importance Basis of life Filters water Water storage Habitat “Our soil is not just dirt, it is a factory where everything needed to feed plants, animals and humans is being made.”
SETP 1: Collecting Soil: Materials Soil samples can be collected in school yard, garden, lawn, flower pot etc. Use clean trowel, spoon or dull knife to loosen soil Dig about 2 to 6 inches into topsoil Do not touch Place about a cup into paper bag Record location and name on bag
Collecting Soil Procedures Place name, location and date on bag Collect about 1 cup of soil Let dry out (no need to seal bag) Note any plant growing nearby
STEP 2: SOIL COLOR, ORAGNIC MATERIAL AND TEXTURE The color, texture and materials in the soil can tell a lot about the soil
Soil Color Generally the darker the soil the better (more organic materials) Gives clues to soil origin
Soil Organic Material Very important part of soil