Sunlight Experiment – the key ingredient for this experiment with ultra-violet light is a sunny day
Sunlight Experiment
Materials (2 plastic glasses, tonic water, tap water, marker, black paper or cloth )
Fill one plastic cup with tonic water and one with tap water almost to the brim and label them.
Place the cups in direct sunlight. For best results, do this experiment in the middle of the day.
Hold a piece of [...]
