This happens because the long slime molecules coil up and slide over each other.īut when you apply pressure, this causes the molecular coils to unwind and get tangled up. You may have noticed that if you leave the slime alone, it acts like a liquid and will mold to the shape of its container. This cross-linking of glue molecules is what creates slime. When borax is added to glue, a chemical reaction occurs that causes cross-links, or bridges, to form between the glue molecules. These polymers can slide over each other, so glue flows like a thick liquid. Polymers are long chains of repeating units. Glue is made of long molecules called polymers. Substances that can behave like a solid and a liquid at the same time are called non-Newtonian fluids. How does it behave? More like a liquid or more like a solid? If you think the slime seems like both a solid and a liquid, you're right! Some types of slime (and other mixtures like ooblek - see Recipe #6 below) can have qualities of both a solid and a liquid.
Try experimenting with the slime a bit - move it around, poke it gently, poke it quickly. Note: if some of the liquid won't stir in, that's okay, just pull out your slime and dispose of the extra liquid. Add the borax and water solution to your bowl of glue and water. Stir until you can't see any little particles at the bottom.ĥ. Add 1/4 teaspoon of borax powder to the hot water in the measuring cup. To the measuring cup, add 1/4 cup of hot tap water.Ĥ. Pour 1/4 cup of clear glue into a bowl.Ģ. Read about borax in slime from for more information. If you're still nervous, liquid starch works just as well - see Glitter Slime (makes for slightly stretchier slime too). Just handling it while playing with slime from this recipe won't cause any harm, but you might consider supervision to prevent ingestion. It's often used as a laundry detergent enhancer or cleaner, but it is toxic if ingested in large amounts.
Want the purest, clearest, snottiest slime there is? Try this recipe out for a glass-like finish to your new slime! What You'll Need:Ī Note On Borax: Borax is a boron mineral and salt that comes right from the ground. Wash your hands before and after making slime! Clean hands makes clean slime, and washing up after makes a clean you!Ĭlick on the icons to skip to the recipe of your choice: Supervise to make sure your kids don't eat the slime (especially any containing borax). We find that 1/4 cup of glue makes a perfectly generous handful of slime (many websites call for a whole cup, but then your glue stock disappears!)Ĭheck all ingredients for anything that might be an allergen for your kids. Good old Elmer’s Washable works just fine.Īll of these recipes are for one 'serving' of slime (not edible!) for one child. Turns out you can make slime with any number of household items. Slime never ceases to fascinate kids, and it seems it’s all the rage again! Which is great news, because you can make slime right at home, and maybe even learn a little science while you’re at it!
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