Discover the secrets of soil science with activities that go beyond planting a seed and watching it grow.
Students learn the recipe for healthy soil, discover the role of microorganisms that live in the soil, make worm trails, build a table-top mini-composter, explore soil texture, test soil for nitrate, phosphorus, pH level and potassium, and more.
Includes: 2 flower pots, 20 Testabs, 10 pH Testabs, 10 nitrate wide range Testabs, 10 phosphorus Testabs, 10 potassium Testabs, 4 test tubes with caps, 1 pipet, handbook.
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