This Dover book features 73 scientific experiments easily done by children without parental supervision. They require only household equipment, and are illustrated with line drawings as well as clear black-and-white photographs. 96 pages, paperback.
This Dover book features 73 scientific experiments easily done by children without parental supervision. They require only household equipment, and are illustrated with line drawings as well as clear black-and-white photographs. 96 pages, paperback.