1. Biology 2 Packet II Lab Soil Investigation Lab

2. Copy this information on bottom of Pg. 102 in your Packet: Pretend you’re looking at the differences of dry dirt from the ground and wet sand.

3. Physical Aspects SoilTexture, Color Moisture, and composition Microscopic observations Dry DirtTexture = Soft Color = Brown Moisture = Dry Composition = Sediment from rocks and once living organisms. Tiny round particles compared to Sand. Wet SandTexture = Hard Color = Black and White Moisture = Wet Composition = Salt, Sediment, and Water Large round particles compared to dirt.

4. Moisture-Holding Capacities SoilMass of Dried Soil Mass of Wet Cheesecloth Mass of wet soil with cheesecloth Mass of Water Moisture Holding Capacity Dry Dirt100 Grams10 Grams150 Grams40 GramsHold more water Dry Sand80 Grams10 Grams110 Grams20 GramsHold less water

5. pH SoilpH Dirt10 Sand7