Now, we are going to grow lentils plants to study the effect of home pollutants on growth and development of lentils. This morning we have put 10 lentil seeds into containers with potting soil. We have recycled used yogurt cups for this experiment. We have watered them. When seeds germinate, we will treat them with the pollutants and we will study the growth of plants. We will have untreated plants, watered only with water, as control experiments.