Fluorescence analogy

Visible light is the small part within the electromagnetic spectrum that human eyes are sensitive to and can detect.

Have you ever looked at fish in a tropical aquarium? Some of them seem to have markings or patches of...

In this activity, students use UVA and UVB light sources to identify certain kinds of minerals in rocks.

Visible light is the small part within the electromagnetic spectrum that human eyes are sensitive to and can detect.