Supplies: Borax (from the supermarket or a small box from laundromat) Elmers Glue-All (White only) pabulum colour in (optional) Water One bountiful plastic collide w/screw lid - ala a large peanut butter sway One plain old shape operating instructions: tonus 1 Add to bondher; 1/3 cup Elmers Glue 1/3 cup Water Food coloring Shake, fire or melt these ingredients until mucilage 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 spill over 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, reorganize the jar too Shake until the slosh, slosh turns thump, thump inconsiderate and remove the guk, you can scrap extra from the sides Now get down! It may stain things, could get stuck in carpets, who knows? The Science: Elmers glue is copolymer polyvinylalcohol, PVA, a plastic made fro m oil Borax is a earthy mineral mined from the earth made of boron, sodium, oxygen and water.
When you sum water to elmers glue the PVA, being unstable, starts to dissolve in the water. When you hang on 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 non eat it...OK? If you want to get a full essay, inn it on our website:
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