How do you really make good glowing slime? When I write up a project, there are two sets of instructions. There are the cover-all-the-bases instructions. where I tell you all the different ways to make something. Then there are the instructions I actually use for myself when I test a project. When I made the glow-in-the-dark slime you see in the picture, here is what I actually did: Materials
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) water bowls or cups spoons measuring cupsInstructions for Making Glowing Slime
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.
Things that Glow under Black Light | Candy Triboluminescence
Photo: Ryan with glowing slime. (Anne Helmenstine)
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