Since my youngest daughter was only two years old at the time and still liked to stick everything in her mouth, I wanted to find a safer alternative. When the latest slime craze hit a few years ago, most of the new recipes I found were made with glue, borax, liquid starch, etc. Growing up, I loved playing with slime, like Nickelodeon Gak and homemade white glue slime! Though in my day, our options were a bit more limited because we didn’t have the internet with thousands of different recipes to choose from. (Originally published inn 2017, updated for 2020) The original and BEST edible Jello slime recipe! Only 3 ingredients and it changes color when you mix it! Our very first edible slime recipe, and still one of the most popular! It does and you can use slime making to explore states of matter and its interactions.Jump to Recipe Jump to Video Print Recipe Can you change the density? Did you know that making 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 the 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 rubberier 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 flow past one another keeping the glue in a liquid state. The glue is a polymer and is made up of long, repeating, and identical strands or molecules. What’s slime science all about? 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.
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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