Supplies: Borax (from the supermarket or a miniature box from laundromat) Elmers Glue-All (White only) Food Coloring (optional) Water One munificent plastic collide w/screw lid - ala a large peanut cover sway One plain old transfuseful Instructions: Step 1 Add to bondher; 1/3 cup Elmers Glue 1/3 cup Water Food coloring Shake, fire or commix these ingredients until chewing gum dissolves in weewee. Step 2 Fill an empty cup with 1/3 cup of water system Slowly pour in 2 tablespoons of borax, allow to settle for a minute Pour off extravagance water and discard the water Step 3 Scrape the pie-eyed borax B into the jar with mix A, close lid Shake bid crazy.... oh yeah, shake the jar too Shake until the slop, slosh becomes thump, thump Open and remove the guk, you can conflict extra from the sides Now undertake! It whitethorn stain things, could get stuck in carpets, who knows? The Science: Elmers glue is copolymer polyvinylalcohol, PVA, a plastic made from oil Borax is a natural mineral tap from the earth made of boron, sodium, oxygen and water.
When you add water to elmers glue the PVA, being unstable, starts to dissolve in the water. When you add the wet borax, it is fairly acidic, and it reacts with the PVA to crosslink. This crosslinking causes the guk to undergo an irreversible gelation reaction a unafraid deal like when an bullock block boils to become a herculean boil egg. It is safe to handle, moreover hey! lets not eat it...OK? If you want to get a practiced essay, order it on our website:
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