Easy Homemade Slime With Borax And Glue

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Chemistry ExpertPh.D., Biomedical Sciences, University of Tennessee at KnoxvilleB.A., Physics và Mathematics, Hastings College
Dr. Helmenstine holds a Ph.D. In biomedical sciences & is a science writer, educator, and consultant. She has taught science courses at the high school, college, & graduate levels.

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Possibly the best science project you can vị using chemistry is making slime. It"s gooey, stretchy, fun, và easy to make. It takes only a few ingredients & a few minutes to lớn make a batch. Follow these step-by-step instructions or watch the clip to see how khổng lồ make slime:


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Anne Helmenstine

Keep your slime in a sealable plastic bag, preferably in the refrigerator. Insects will leave slime alone because borax is a natural pesticide, but you'll want khổng lồ chill the slime lớn prevent mold growth if you live in an area with high mold count. The main danger lớn your slime is evaporation, so keep it sealed when you're not using it.


How Slime Works

Slime is an example of a polymer, made by cross-linking small molecules (subunits or mer units) to form flexible chains. Much of the space between the chains is filled by water, producing a substance that has more structure than liquid water yet less organization than a solid.

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Many types of slime are non-Newtonian fluids, which means that the ability lớn flow, or viscosity, is not a constant. Viscosity changes according khổng lồ certain conditions. Oobleck is a good example of a non-Newtonian slime. Oobleck flows lượt thích a thick liquid yet resists flowing when squeezed or punched.

You can change the properties of borax & glue slime by playing with the ratio between the ingredients. Try adding more borax or more glue to see the effect it has on how stretchy or thick the slime is. In a polymer, molecules size cross liên kết at specific (not random) points. This means some of one ingredient or another usually is left over from a recipe. Usually, the excess ingredient is water, which is normal when making slime.