The Spirometer can be used to perform a variety of tests related to air flow and lung volume. The sensor includes a removable flow head (22 mm ID/30 m...
Three stages of fun investigation and experimentation can be adapted for completion in 12 class periods or extended as a year long project. Designed t...
Seeds come in all forms, such as nuts, berries, pods, wings, acorns, and more. Students can study and identify 39 examples of these and other seeds in...
Full-color DVD presentations can be used to introduce, complement, or follow-up classroom dissections. Each begins with observation of external anatom...