Here is a lesson to introduce photosynthesis that uses the glowing US as an anchoring phenomena. You can demo this phenomena for students if you crush up spinach leaves in a test tube, add ethanol, put in a hot water bath, turn off the lights, and shine a UV light. The chlorophyll will give off a cool fluorescent light. Students learn the historical experiments that led to our current understanding of photosynthesis. Students will practice developing and using models to illustrate the process of