A student of mine gave me an interesting Valentine present. Basically it is a simple chemical reaction in a bag. Watch the video to see how it works. You can buy these a Dollar Tree stores during the holiday season. It was exciting to see how a simple “toy” can be used to teach science!
Archive for February, 2008
Video Demo: Valentine Chemical Reaction
Published by February 21st, 2008 in Demos and Video. 1 CommentI’m using a wonderful tool called Voicethread to demonstrate how to extract DNA from raw wheat germ. Click play on how to do the demo and to see how Voicethread can be used. Download the handout for more details.
Video Demo: Yeast Cellular Respiration
Published by February 11th, 2008 in Demos and Video. 0 CommentsThis demo demonstrates that yeast do cellular respiration. When sugar (glucose) and oxygen are present, yeast mitochondria will make those chemicals react and release energy as well as the products water and carbon dioxide. Bromothymol blue solution will change to yellow in the presence of carbon dioxide. If there is no more […]
