"Why are the seas blue?" is a huge question that may reach far beyond the middle school level. However, our objective is to bring "simple" tools into the classroom to explain science without tampering with its essence and complexity. The experiment described in this article is only concerned with teaching the subject of absorption as related to…

Although children often characterize animals by the animals' color or pattern, the children seldom understand the evolutionary and ecological factors that favor particular colors. In this article, we describe two activities that help students understand the distinct evolutionary strategies of warning coloration and camouflage. Because both of…