7.EC.5A.2 Construct explanations of how soil quality (including composition, texture, particle size, permeability, and pH) affects the characteristics of an ecosystem using evidence from soil profiles.
Soils are complex mixtures of minerals, water, air, organic matter, and countless organisms that are the decaying remains of once-living things. Click on the links below to explore soil and its characteristics.
Create a Soil Profile with Sand, Silt, and Clay tetris-style. Investigate the best conditions for plant growth and animal survival.
Think you have it all figured out? Take the practice quiz below to see what you need to review before the test. Click on the links below to test your knowledge.