Fun Friday - making slime!

Here is a fun science experiment that all kids love..... and no matter how many times a child may have done this one, they are always happy to do it again!

HOW TO MAKE SLIME

You will need.... 



*You can pick up the borax powder in your local chemist (See note below)



What you do... 


This experiment is as fun as it looks!


If you want to keep your slime just pop it into a Zip-lock bag and seal it and it will be ready for you next time you want some slimey fun!



So what is happening?...

Congratulation... you have just made a polymer!! In simple terms a polymer is a substance made up of lots of molecules arranged in long chains.  If you imagine that the glue is like cooked spaghetti, it slides and slips around the place quite easily.  When we add the borax to the glue it causes some of the molecules in the glue to stick together making the glue more rubbery and less liquid!  Imagine if you took those strands of spaghetti and tied them together in places, the strands would not be able to slip and slide around nearly as much! The borax and glue mixture is just like your knotted spaghetti!



*Where can I get Borax powder?

In Ireland you need to buy Borax powder in a pharmacy.  The production is a little erratic and the larger volumes are no longer available!  You should be able to get this 100g tub in any pharmacy and it costs about €2.25.




Check out next week's Fun Friday post for more slime recipes to try at home!

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