One of the guiding principles highlighted in "A Framework for K-12 Science Education" (NRC 2012) states that "children are born investigators," claiming that students construct their own understanding of the natural world even before they learn about it in formal learning settings. Even if students lack a thorough…

A lot of good elementary science involves studying solids, liquids, and gases, and some inquiry-based activities that are easy to set up and do. In this article, the author presents activities pertaining to simple phase change. Using water as the example, these activities introduce upper-grade students to the idea of the arrangement of molecules…