Slime is called a Non-Newtonian fluid because it’s a bit of both! Experiment with making the slime more or less viscous with varying amounts of foam beads. > What is Slime? Read more about slime science here. Clear slime is actually quite easy, its basically clear glue, water and activator however clear stretchy slime takes a bit of practice. As the slime forms, the tangled molecule strands are much like a clump of spaghetti! Picture the difference between wet spaghetti and leftover spaghetti the next day. They begin to tangle and mix until the substance is less like the liquid you started with and thicker and rubbery like slime! Slime is a polymer. You add the borate ions to the mixture, and it then starts to connect these long strands together. These molecules with flow past one another and keep the glue liquid. The glue is a polymer of long, repeating, and identical strands or molecules. How do you make slime? The borate ions in the slime activator (sodium borate, borax powder, or boric acid) mix with the PVA (polyvinyl acetate) glue and form this cool, stretchy substance. Mixtures, substances, polymers, cross-linking, states of matter, elasticity, and viscosity are just a few science concepts that can be explored with homemade slime! We always like to include a bit of homemade slime science around here! Slime is an excellent chemistry demonstration, and kids love it too!
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