STC Program: Solids and Liquids Unit Kit, 3rd Edition

The investigations in Solids and Liquids introduce students to two key concepts of physical science-that solids and liquids are two states of matter and that each state of matter has its own identifiable properties. Students begin by investigating a set of solids, focusing on properties such as shape, color, texture, and hardness. They conduct experiments to determine whether the solids will float or sink, roll or stack, or attract a magnet.