by STAO ADMIN | Nov 13, 2019
This demonstration illustrates the importance of enzymes in the human body. Enzymes catalyze many important chemical reactions in the body. This demonstration is a visual example of how the enzyme catalase, which is present in all cells, but in highest concentrations...
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....
by STAO ADMIN | Nov 13, 2019
This student activity illustrates how plants grow away from or towards a stimulus by continuing cell growth and elongation on one side of the stem while ceasing cell growth and elongation on the opposite side of the stem. This connects to the curriculum by allowing...
by STAO ADMIN | Nov 13, 2019
Xylem and phloem tissues make up the “circulatory” system of a plant. The xylem tissues transport water from the roots to all of the other living tissues, while the phloem tissues transport sugars from the green tissues where photosynthesis occurs to...
by STAO ADMIN | Nov 12, 2019
Turning water into wine and then into beer and finally milk is an extremely versatile chemistry demonstration. It can be used to introduce or reinforce several important concepts in chemistry including evidence for chemical change and types of chemical reactions...
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