Things aren’t always as they appear – light refraction experiment
Experiment to demonstrate the principle of refraction Ever reached down into the bath tub water to grab a toy and found that it was not in the position it appeared to be in? What you are experiencing is the effect called refraction. When light enters the water (or any transparent material) it slows down slightly. If the light enters the water at an angle then this change in speed causes the light beam to bend away from its original path. This is called refraction. Let's conduct an experiment that allows us to see the effect of refraction. Fill the glass 2/3 full of water. Place the pencil in the glass holding it straight up and down (i.e. not at an angle). Notice that the pencil still appears