Grade 4–6—Readers are encouraged to explore basic science laws and principles via hands-on activities. Each volume begins with four pages of background information, a safety note, and tips for performing successful experiments. The activities range from simple, such as making a "Human Gyroscope" (Force), to complex, as in "Measuring Food Energy" (Heat). Many of them are routine, like "Separating Colors" (Light), but others are unusually complicated, such as "Curie Point" (Electricity). All the experiments have a list of goals, a difficulty rating, safety and troubleshooting tips, and an illustrated list of supplies; many require a well-equipped lab or a trip to a hardware store. None include introductory information or concluding explanations.
