Here are simple, hands-on activities to reinforce basic science principles.  All the materials used can be found in a kitchen.  Each activity lists the concept to be examined, simple-to-follow procedures, and a brief explanation.

The Grades 4-6 Version includes topics such as taste & smell, the scientific method, crystals, animal camouflage, hydrotropism, geotropism, Newton’s laws, evaporation, magnetic compass, atmospheric pressure, and diffusion of gases. 49 pp.