Compound bar, Brass and Steel, Weight (lb): 41.0, Length (in):28.7, Width (in): 20.1, Height (in): 18.1, For demonstrating the differential expansion of two metals, Comprising a bar of Brass and Steel each 200 x 15 mm, riveted together
Lets Go Investigating Temperature, Lab book, Aimed especially for elementary teachers, this lab book contains ten engaging temperature experiments, Activities for grade 2 through 5, Lots of teacher tips, Clear illustrations to facilitate underst
KidWind Wind Turbine Generator with Wire,Voltage output: 0-10 V, Amperage output: 0-0.3 A, Diameter: 1.25 in, Wire length: 4 ft, Shaft diameter: 2 mm, Recommended for College, High School, and Middle School Science