by STAO ADMIN | Nov 13, 2019
This demonstration shows how water can affect the growth of bread mould.
by STAO ADMIN | Nov 13, 2019
This demonstration uses food and a series of containers and additives to model the process of mechanical and chemical digestion in the human (mammalian) digestive system. The demonstration begins with actual food items and ends with a paste closely resembling fecal...
by STAO ADMIN | Nov 13, 2019
“Our bodies are bombarded by bacteria and viruses. For those that make their way inside, our immune system is on guard, waiting not only to kill the invaders but also to create memory cells that will help defeat them more quickly the next time they try to...
by STAO ADMIN | Nov 13, 2019
This demonstration (adapted from http://www.indiana.edu/~ensiweb/lessons/origami.html where there is additional information) models the process of evolution by introducing random mutations into organisms (paper and straw birds). Birds are then selected for the...
by STAO ADMIN | Nov 13, 2019
These three demos allow students to experience applications of knowledge of the digestive, respiratory, and circulatory systems by doing very short activities on themselves. They also allow the opportunity to discuss the pros and cons of using humans as test subjects....
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