Demonstrate the chemiluminescence of luminol to explain how fireflies put on their glow-in-the-dark show.
Electricity can flow through some materials but not others. If electricity flows through a material, the material is said to “conduct” electricity. In this activity, you can use batteries, an aluminum ...
Some objects float in water and other sink. But did you know that you can change whether something floats or sinks by adding a substance to the water? Let's try it and see! Pour water into a cup until ...