Fluorescence is a phenomenon that arises out of the interaction between certain materials and certain frequencies, or energies of light. It is one of the most visually stunning light-matter interactions observable. Who isn’t amazed when invisible light suddenly becomes visible, or when green light turns into red? This very simple and inexpensive hands-on, inquiry activity brings the science of fluorescence to light – and qualitatively demonstrates the photoelectric effect.
Grade Range: 9 to 12+
Duration: 1/2 Hour – 1 Hour
Supplies:
- Fluorescent markers (yellow, orange and pink)
- Rainbow glasses
- A set of LASER Blox, red, green and violet
NGSS Connections
PS4.B: Electromagnetic Radiation
- Evaluate the validity and reliability of claims in published materials of the effects that different frequencies of electromagnetic radiation have when absorbed by matter. (HS-PS4-4)
- Photoelectric materials emit electrons when they absorb light of a high enough frequency (HS-PS4-5)
