Making slime is one our family’s favorite crafts because the kids love measuring the ingredients, stirring them together, and then kneading it into slime dough. It’s not just a fun activity, it’s educational! COOKING SKILLS THROUGH CRAFTINGĬrafts that require measuring and mixing are a great way to encourage your kids to enjoy both science, and cooking. Looking for a Borax free slime recipe? Check out our fluffy slime recipe! Liquid starch and saline solution (or contact lens solution) are both slime recipe activators that can be used in place of Borax. It does and you can use slime making to explore states of matter and its interactions.This quick and easy borax slime recipe makes a fun Valentine’s Day activity that provides hours of entertainment. It’s also a great sensory experience! 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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