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PROCEDURE: Polyvinyl Alcohol Slime. Materials needed: paper cup, 5 oz stirring rod Polyvinyl alcohol, 4% solution in water. (See “Preparation of Solutions” at the end of this investigation.) Borax (sodium tetraborate decahydrate), Na2B4O7 10H20, 4% solution, weight in water.
A solution of polyvinyl alcohol (PVA) can be made into a slime by adding borax solution, which creates cross-links between polymer chains. This experiment is easy to set up, providing the chemicals are available, and should take no more than about 30 minutes. It can be done by students in groups of two or three.
Procedure: 1. Measure 2 tsp. of polyvinyl alcohol polymer solution into a cup. 2. Add 1/4 teaspoon of Borax solution. Mix well with a wooden stick. 3. Touch and try to pour the product. How does it feel? Can it be poured? 4. Working on waxed paper, roll the "slime" into a ball and try to bounce it. Does it bounce?
For students and small classrooms, the Slime Science Set has all you need to make varieties of slimes. If you have access to food coloring, you can add a few drops to your PVA solution to make colorful slime.
This slime recipe requires a 4% solution of polyvinyl alcohol (PVA) and sodium tetraborate (that’s Borax). Slime made with PVA is often referred to as commercial or “professional” slime. This is the type that is generally found in toy stores.
22 Απρ 2024 · At this point, add a few drops of food coloring (tartrazine) or fluorescein to the dissolution of alcohol, and mix both solutions. A slime forms quickly and can be stored in a plastic bag with self-closing mechanism to prevent drying.
For students and small classrooms, the Slime Science Set has all you need to make varieties of slimes. If you have access to food coloring, you can add a few drops to your PVA solution to make colorful slime. List of Materials: 50 grams of Polyvinyl Alcohol (PVOH 4988) 25 grams of Borax (BORAX10) 4.5 Oz (118 grams) White Glue; 2 Oz Liquid Starch
