How big or small are viruses really? In this activity, you will find out by creating a scale model that allows you to compare the size of many different small objects.

Use an Alka-Seltzer to find out how size of a particle affects the speed of a chemical reaction. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by a section on...

An exhibition that uses African art to explain the concepts of bigness and smallness. In the world of art, big and small can refer not only to physical size but to relative size, to the impression an object makes, or to the largeness of...