Bending Straw Illusion Magic Science Experiment
In this fun and easy magic science experiment, we’re going to use an optical illusion to make it appear a straw is bending.
- Fill the glass about halfway with water.
- Now put the straw into the glass of water.
- Observe the straw from the top, sides, and bottom of the glass.
- When you observe the straw from the sides of the glass, it appears to be broken or bent.
How it Works:
Refraction causes the straw to look bent and sometimes it can even appears to be broken. Light usually travels in a straight line to our eyes, but when the light goes through the water, it slightly changes direction. So as we look at the straw in the glass, the light from the top part of the straw travels straight to our eyes whereas the part of the straw that’s underwater has light that is refracted since it travels through the water before it reaches our eyes.
Make This A Science Project:
Try different sized glasses. Try writing messages and hold them behind the glass. Try putting different sized and shaped items in the glass.