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Favorite pastime for many very young people, it Skifidol slime do it yourself it is a fashion that is making a strong comeback these days. To confirm this, the many recipes of slime do it youtself (slime DIY) that you can find online, in order to satisfy your needs or those of your very young children.
But how do-it-yourself skifidol slime is made?
Below we have summarized some recipes that you can follow, naturally paying attention to the correct management of the ingredients, for your health and your little ones.
The simplest recipe
Let's start with the simplest DIY Skifidol slime recipe.
Mix about 30 grams of glue and a quarter of a cup of water in a bowl. If you want the slime to be colored, add food coloring to the glue and water mixture. Take a ladle and mix carefully. Next, add a quarter cup of sodium tetraborate (borax) solution water to the glue-water mixture and mix slowly.
If you don't want to buy borax on the market, you can prepare it at home by filling a bottle about three quarters of water and then adding 4 teaspoons of sodium tetraborate to the water, stirring until it dissolves. Fill the bottle to the top with water and shake again to completely dissolve the sodium tetraborate solids.
Closed this parenthesis, and returning to our recipe, you will notice that the slime will begin to form immediately. Lift some of the solution being formed with a ladle and evaluate how it is consistency. Stir as much as possible and then knead with your hands until the mixture becomes less sticky. When not in use, store the mixture in a plastic bag in the refrigerator to keep it from mold growth.
The "secret" of making your own slime following the recipe above is that the glue has an ingredient called polyvinyl acetate, which is a liquid polymer. Borax connects the polyvinyl acetate molecules to each other, creating a larger flexible polymer. This type of slime becomes stiffer and more similar to putty, the more you “play” with it.
Read also: Autumn games for children: what are they
The recipe without borax
Then there is an alternative recipe that you can follow, even more basic. Add 7 tablespoons of skim milk to a cup and add 1 tablespoon of vinegar to the milk. Then, gently mix the mixture until solids have formed. Let the mixture sink to the bottom of the mixture and then drain the slurry using a filter (the coffee filter works properly). Let the mixture drain for a few minutes. Finally, add a quarter of a teaspoon of baking soda to the mixture and knead together to form a slimy mixture.
Also in this case, it is useful to make a brief explanation of what happened in chemistry. In fact, when you added the vinegar to the milk, this move meant that the milk protein, casein, which is also a polymer, separated from the liquid part of the milk and came together to form a solid compound. Casein is used in adhesives, paints and even plastics. The sodium bicarbonate neutralizes the added acid, which allows the casein to return to its liquid form!
The recipe for "quicksand"
Let's conclude with the last recipe. In a container, mix small amounts of water and corn starch to form a mixture that will look like whipping cream, a little heavier, and will have the consistency of honey. The approximate ratio of the cornstarch to water mixture should be 2 cups of cornstarch to 1 cup of water.
After making the mixture, gently spread your hand over the surface of the corn-water mixture. You will notice that the hand will sink into the mixture as you would expect it to. Then move your hand through the mixture, first slowly and then trying to move it much faster.
You will notice that whenever you gently and slowly move your hand through the cornstarch - water mixture, this compound will behave like a liquid. But when you try to move your hand through it quickly or forcefully, it will behave like a solid. In short, this corn starch - water mixture behaves similarly to quicksand. Magic?
Not exactly. In fact, remember that quicksand, as well as the corn starch-water mixture mentioned above, are both non-Newtonian fluids, whose viscosity changes with the type of force applied. On the other hand, the viscosity of Newtonian fluids (such as water and honey, which follow Isaac Newton's law of viscosity) depends only on the temperature and pressure of the fluid, not on the force applied to it.