The Understanding Science DVD series explains tricky scientific concepts in an easy-to-understand format. Presented by "Doctor Science," episodes introduce scientific concepts in a fun and engaging way. This DVD defines & describes physical & general properties of matter, states of matter, density, weight and mass, Boyle's Law, Charle's Law, Phase Changes. Each program includes teaching strategy materials as well as student glossaries of the scientific terminology used in each volume. Dr. Science uses experiments that can be adapted to the classroom and easily performed along with the program. Grades 5-9. 22 minutes on DVD.