Can you change the density?ĭid you know that slime aligns with the Next Generation Science Standards (NGSS)? We call it a Non-Newtonian fluid because it’s a little bit of both! Experiment with making the slime more or less viscous with varying amounts of foam beads. As the slime forms, the tangled molecule strands are much like a clump of spaghetti! Is slime a liquid or solid? 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. When you add the borate ions to the mixture, it starts to connect the long strands together. These molecules flow past one another, keeping the glue liquid. The glue is a polymer of long, repeating, and identical strands or molecules.
What’s slime science all about? The borate ions in the slime activators (sodium borate, borax powder, or boric acid) mix with the PVA (polyvinyl acetate) glue and form this cool stretchy substance. We always like to include a bit of homemade slime science around here! Slime is an excellent chemistry demonstration and kids love it too! Mixtures, substances, polymers, cross-linking, states of matter, elasticity, and viscosity are just a few of the science concepts that can be explored with homemade slime!
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