Soil: What It Is and What It Does

Explains that different kinds of soil are mixtures of sand, clay, and humus; tells how the weathering of rocks helps make soil; includes simple experiments to show the kind of soil in which different plants grow well. Watch Soil: What It Is and What It Does in HD free online now on SFlix with multiple servers and instant playback. Enjoy high-quality streaming of Soil: What It Is and What It Does and share your thoughts in the comments below!