9Learning about materials--the substances things are made of--and their properties is an important science concept and a useful way to stay curious about the world. This engaging book combines materials, a curricular science topic, with crafts, activities, and projects. Each relevant topic--including solids, liquids, and gases; recycling; and elasticity--is clearly explained with at-level text and then followed by an activity that highlights a particular aspect of the topic. These projects, which contain step-by-step instructions and easy-to-find materials, include a pouring race, a stalactite formation, a recycled paper task, and a chocolate treat recipe that readers can share with friends!