Up next in How to Do Fun Tech & Science Projects (52 videos)
Teach your children technical skills and science in fun ways with the tech and science projects in this Howcast video series.
You Will Need
- A pencil
- Laundry detergent with whitener/brightener
- A bucket, paintbrush, and water
- A damp sponge
- Two 18" fluorescent black light tubes with matching fixtures
- Surge protector
- A blank wall or other surface
Pick your design
Pick your design. Using a pencil, lightly trace an outline of the picture onto your wall.
Prep your detergent
Prep your detergent: If it's a powder, mix it in the bucket with water until you get a paint-like consistency. If you're working with a thicker liquid detergent, you may want to thin it with water to make it easier to spread.
Using your brush, paint the detergent mixture over your pencil marks. After the first coat is completely dry, apply a second coat to fill in any missed spots. Keep a damp sponge on hand to deal with drips and mistakes.
Set up the lights
Assemble your black lights—which are also known as UV lights and can be found online—in their fixtures. Plug them into a surge protector, and set them up on either side of your design.
Turn off the light
To achieve the most spectacular effect, make the room as dark as possible by drawing the curtains, shutting the door, and turning off the lights.
Revel in your artistry
Invite a few friends over, flip on the black lights, and revel in your awesome artistry.