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.
Butterfly Lifecycle Stages, Children can see how butterflies change as they grow with the Painted Lady Butterfly Life Cycle Stages. The accurately detailed Egg, Caterpillar, Chrysalis and Adult Butterfly replicas are oversized for little hands