The more you add, the “fluffier” it will be. The amount of shaving cream you add will change the texture and consistency of the slime. What is Fluffy Slime?įluffy slime is really just regular slime made with shaving cream added. We love how colorful and pretty it looks too! And if you want a sparkly unicorn slime be sure to see this unicorn slime recipe. Remind them to "zip" their bags because the putty dries out quickly.We made this recipe with unicorn colors – pink, teal and purple. If desired, offer zipper bags to students who wish to save their putty to take home.Have students show their most elastic putty to the class, and have them describe their recipes.Have students try several recipes, again trying to create a putty that is elastic but not sticky.They have a maximum of four recipe trials. Wipe off and reuse the spoons, but get a new cup for each different recipe. Specifically, report on each batch's texture: too elastic, perfect, too sticky, etc. Have students describe the silly putty consistency on their papers (under Results).If liquid remains in the bottom of the cup after three mixes, take out the solid part and have them mix it with their hands until it is no longer wet. Scrape the solid off the spoon and put it back into the cup and mix thoroughly again three times.Add the Borax mixture and mix until a solid forms.Put the two drops of food coloring and pre-selected amount of glue mixture that they determined they will use for each recipe/test into a plastic cup and mix well.Have students call their first recipe Trial 1 (followed by Trial 2, Trial 3, etc.) Write down the recipe (the ingredient and the number of spoonfuls) they will be mixing on a blank piece of paper.Decide on a recipe to try consisting of four spoonfuls of available ingredients.Inform students that the best way to mix the putty is as follows:.Instruct them to draw a line down the center of their papers and label the left side: Trials, and the right side, Results. It should have a consistency similar to cookie dough that easily comes off of waxed paper, not peanut butter that must be scraped off.) (Note: to describe "too sticky," tell students their putty should easily peel from the sides of the cup or even their hands. Tell students that their goal is to make putty that is very elastic, but not super sticky.Tell students they should use two drops of food coloring per batch. For example, they could try one spoon of glue, one spoon of Borax, and two spoons of water. Tell students that each batch of putty they make should consist of exactly four spoons of liquid, the ingredients of which are distributed any way they choose.Tell them they only get one bottle of each ingredient, so they should use it wisely. Show students the four ingredients they will be using for their putty: food coloring, water, Borax solution and glue solution.Do not hand out supplies until steps 4 and 5, listed below. Instructor note: students make small batches of different mixtures to create a variety of putties. Then, quickly yank on the putty and show students that it breaks like a solid. Pull the putty out of the cup, and slowly stretch the putty to show students that it is stretchy and elastic. Put it in another empty cup and show them that it fills the spaces in the cup, but slower than the water did. Remind students that viscoelastic materials have properties of both liquids and solids. If you add water to the glass, it is a liquid, and therefore fills all of the spaces and conforms to the shape of the glass. If you fill a glass with ice cubes, the ice is solid, and does not conform to the shape of the glass spaces in the glass are filled with air. Afterwards, students make their own silly putty with differing properties.ĭiscuss solids, liquids and viscoelasticity with students. Explain the properties of a viscoelastic material using the demonstration described below.
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