Combine Hydroponics and the Study of Mineral Deficiencies

With this WARD’S exclusive activity, your students germinate two types of seeds, then transfer them to various nutrient solutions for observation. Within two weeks, your students will become experts at identifying the symptoms of calcium, phosphorus, sulfur, magnesium, iron, nitrogen, and potassium soil deficiencies, all grown hydroponically. You will get a teacher’s manual and enough materials for ten setups.