Rectangular Block - Glass, Made from imported optical glass with optically worked surfaces, All angles accurately worked with edges slightly bevelled and glass free from bubbles, Size: 125 x 65 x 18 mm
Simple Science Experiment book, With Everyday Materials, Gaining knowledge of the fundamentals of science, Genre: Juvenile Nonfiction, Projects include a bubble blower, a bottle barometer, Age Range: All ages, Grade: P-17, Pages: 306, Dimension: 8x9-1/8in