Goop -- also known as slime, goo or gack -- provides hours of playtime enjoyment for children enthralled by its somewhat disgusting, runny consistency. Instead of purchasing similar slimy products from the store, make your own goop from household ingredients. Letting the kids help create it adds even more fun.
White school glue, water and borax mix together to create a simple slime or goop, with no extra additives required. An 8-ounce bottle of glue, warm water and just one teaspoon of borax make a small batch of goop. Add food coloring to turn your otherwise white slime any color you'd like.
Making the Goop
Squirt an entire 8-ounce bottle of glue into a container large enough to hold more than a cup of liquid, such as a plastic mixing bowl used just for craft purposes, or an empty, clean margarine container. Fill the empty glue bottle with warm water, place the lid back on the glue bottle, and then shake the bottle to get the remaining glue out. Pour the glue-water into the bowl with the glue. Add a few drops of food coloring, if you like. In a separate plastic cup, mix 1 teaspoon of borax powder into 1/2 cup of warm water. Stir the liquid with a plastic spoon or wooden craft stick until most of the borax dissolves. Pour some of the borax water into the glue bowl while stirring the glue to create a reaction that forms the slime. Keep pouring -- and stirring -- until the slime reaches a consistency you like; there's no right or wrong amount of borax water.
Turn plain goop into glowing goop by removing the felt stick from a highlighter with pliers and soaking it in a cup or two of warm water for several hours. Squeeze all the liquid out of the felt while wearing rubber gloves to get the most dye out of it. Use the glowing water instead of plain water when you mix up your homemade goo. This version even glows under a black light.
Slime Play Time
Once the mixture sticks to the spoon or craft stick as you try to lift it out of the bowl, it's ready to play with. Pull and stretch it between your hands -- the more you play with it, the less sticky it gets. Place a blob of the goop over some plastic toys, over the top of a bottle or wherever you like to see how it behaves, or roll it into a ball and try to bounce it. When the kids are finished playing with the goo for the day, store it in a zippered sandwich bag, sealing the bag tight to keep air out. Squeeze excess air out of the bag as you close it.