Disappearing Glass Experiment
Materials:
- glass
- sunflower oil
- glass rod
Procedure:
Fill a small glass with sunflower oil. Dip a glass rod into the sunflower oil. Notice that the rod has disappeared!
Explanation:
Light travels with the same speed in glass and in oil. When the light comes on the rod it will continue its straight spread, without refraction, so that the rod is not visible in the sunflower oil.
