Junior Magnet Kit, A Kit Of Magnets And Accessories For Science Experiments, Each Of Square Iron, Aluminium, Zinc And Copper Metal, 1 Horseshoe Magnet With Keeper, 100mm 2 Ceramic Bar Magnets 75 mm Long. 3 Ceramic Ring Magnets, 38 mm Dia, Face Polarised.2 Plotting Compasses
Easy to construct the three dimensional model of DNA. Emphasizing the base pair sequence and function of DNA, the sturdy, colorful bases snap together in the correct sequence, and the pairs attach to a center rod representing hydrogen bonds.