- borax (from laundry aisle of a grocery store)
- Elmer's™ non-toxic blue glue gel (sold with office or school supplies)
- Glow-Away™ washable paint (sold near tempera paint at Michael's craft store)
- bowls or cups
- measuring cups
- In one bowl, mix 1/3 cup glue with 1 cup water. I used a whisk, since stirring with a spoon was slow.
- Stir or whisk in about half a tube of the paint.
- Pour about half a cup of hot water into a cup or second bowl.
- Stir in borax until it stops dissolving (starts to leave some at the bottom). This makes a saturated solution without any measuring at all.
- Measure and mix 1/3 cup of the borax solution (the clear part, not the undissolved stuff at the bottom) with 1 cup of the glue/glow mixture.
- You can try to whisk this, but it's easier to use your hands.
- Activate the glow by holding the slime under a bright light. Any light works, but the brightest glow will come from a UV lamp (black light) or a fluorescent bulb. Turn out the lights!
- Wash your hands when you are done playing with your slime.
- You can store the slime indefinitely in a sealed baggie.
Photo: Ryan with glowing slime. (Anne Helmenstine)