Ingredients in your shampoo are toxic enough to kill plants. The 16th installment of the series of 24 tests the toxicity level of various concentrations of SLS, a chemical found in nearly all shampoo. Learners prepare percent solutions...

Pupils participate in several plant-themed activities. They keep a food log, identify any plants they have eaten and then classify these foods by the part of the plant that is edible. Students sing songs about plants, make collages, make...