This demonstration is definitely an eye-catching crowd-pleaser. It is a great demonstration to show the interconnection between physics and chemistry, linking an example of light emission to evidence of chemical reactions. It is similar to a common example of bioluminescence, which occurs in fireflies, allowing them to “glow” in the dark.
Categories: Lab/Student Activity, Teacher Demonstration
This demonstration is an entertaining way to introduce simple chemical reactions and the types of evidence that indicate the occurrence of chemical change, including the production of a gas. A link... read more
Categories: Teacher Demonstration
The Doppler Effect, when applied to light from a star, can be used to determine if the star is approaching or receding. This is the basis for the generally accepted theory that the universe is... read more
Categories: Teacher Demonstration
This is a classic demonstration that illustrates the power of atmospheric pressure. A small amount of water is heated in a pop can. The can is inverted and submerged in ice-cold water. As a result,... read more