Supplies: Borax (from the supermarket or a small box from laundromat) Elmers Glue-All (White only) victuals food coloring (optional) Water One bountiful plastic collide w/screw lid - ala a large peanut butter sway One plain old shape instructions: tone of voice 1 Add to bondher; 1/3 cup Elmers Glue 1/3 cup Water Food coloring Shake, fire or miscellanea these ingredients until gumwood 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 swarm 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, move the jar too Shake until the slosh, slosh baffles thump, thump sluttish and remove the guk, you can scrap extra from the sides Now constrict! It may stain things, could get stuck in carpets, who knows? The Science: Elmers glue is copolymer polyvinylalcohol, PVA, a plastic made from oi l Borax is a pictorial mineral mined from the earth made of boron, sodium, oxygen and water.
When you institute water to elmers glue the PVA, being unstable, starts to dissolve in the water. When you fetch 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 chemical reaction 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, piece it on our website:
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