Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: Find a Phone With a Flash Any Phone Will Do
You may have to download an app but I'm using an iPhone 5s so it come with that software for the flash light
Step 2: Get a Marble
Step 3: Put It on Top of the Flash
Step 4: Be Amazed
Participated in the
Full Spectrum Laser Contest