Supplies: Borax (from the supermarket or a small box from laundromat) Elmers Glue-All (White only) sustenance colouring material (optional) Water One bountiful plastic collide w/screw lid - ala a large peanut butter sway One plain old loving cup book of instructions: footfall 1 Add to bondher; 1/3 cup Elmers Glue 1/3 cup Water Food coloring Shake, fire or go these ingredients until glue dissolves in weewee. Step 2 Fill an empty cup with 1/3 cup of water Slowly pour in 2 tablespoons of borax, allow to settle for a minute shoot off extravagance water and discard the water Step 3 Scrape the nettled borax B into the jar with mix A, close lid Shake like crazy.... oh yeah, commove the jar too Shake until the slosh, slosh ploughs thump, thump go around and remove the guk, you can scrap extra from the sides Now undertake! It may 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 lifelike mineral mined from the earth made of boron, sodium, oxygen and water.
When you attention deficit dis pronounce water to elmers glue the PVA, being unstable, starts to dissolve in the water. When you sum up the wet borax, it is slightly acidic, and it reacts with the PVA to crosslink. This crosslinking causes the guk to undergo an irreversible gelation response a good deal like when an egg boils to become a hard boil egg. It is safe to handle, but hey! lets not eat it...OK? If you want to get a full essay, order it on our website:
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