How do you make a improvised prism?

Answer 1

To make an improvised prism, you can use a clear plastic bottle filled with water. Cut off the bottom of the bottle and shine a flashlight through the open end at an angle, allowing the light to pass through the water. The water will act as the prism, refracting the light and creating a spectrum of colors on a surface placed behind it. Alternatively, you can use a CD or DVD, which can also refract light and display a rainbow effect when tilted correctly.