A lab in which high schoolers examine the difference between arteries and veins. Budding biologists will find out which blood vessel can stretch furthest, recording their data in a table then answering several questions evaluating their...

As a lesson on scientific observation, have your class investigate the features of a penny and a nickel. Working in pairs, they practice writing detailed descriptions using their senses and a ruler to gather information. This is an...

Expectant earth scientists examine the bottom side of a leaf and learn the role of the stomata. They consider the gas exchange that occurs through these structures and relate how the climate is changing to its impact on food crops. This...