7B13.50 - Fluorescent Chalk under UV light
Fluorescent chalk flouresces with a UV light source.
Get flourescent chalk, fluorescent tattoo ink, UV laser, and UV flashlight from optics aisle. Remind instructors about UV dangers.
Write or draw with the flourescent chalk, and illuminate it with the UV flashlight. Do NOT look directly into the UV flashlight, or shine it directly at students. **DO NOT OPEN** ink vials. If using the UV laser, be careful of reflections.