Home » Things to do with fake snow. Years and years ago I posted three easy recipes for fake snow. Insta Snow powder is a super absorbent powder very similar to what is found in babies nappies! Insta Snow powder is slightly different to that in nappies though as it becomes super fluffy when it absorbs water whereas the polymer in nappies becomes more gel like. To make the best fake snow you need to add just the right amount of water to the insta snow powder, but this is an experiment in inself.
Try adding different amounts of water and insta snow powder until you find the best combination. My little boy loves Thomas the Tank Engine, so we made our snowy scene Thomas themed. I sprinkled insta snow powder around the track and trains and added water so he could watch the snow appear. Insta snow is great for making animal footprints or even drawing letters and numbers. Mixing the solid and the liquid causes the solid to grow bigger in size as a result of the solid pulling the water into its structure.
The instant snow reaction happens when you add water. The molecules of the instant snow absorb about times its mass in water. After a few seconds the molecules expand and create a chain of molecules that allows everything to stay together. Students at this age group understand that all substances are made up of atoms and that atoms combine to form molecules.
They understand that during chemical reactions, the atoms in the reactants rearrange to form products with different properties. A monomer is a molecule that may bind chemically to other molecules to form a monomer. Examples of this is all around us. Rubber is a polymer made from monomers. Osmosis is the spontaneous movement of water into an area of high solute concentration from low concentration.
Due to osmosis , more and more water is pulled into the molecule until the ratio of sodium atoms to water molecules is so small that the amount of sodium on the "inside" of the molecule is negligible. Water movement via osmosis stops when the ratio of water and sodium inside and outside the polymer is equal. It takes a lot of water to do this — that is why sodium polyacrylate is advertised to absorb up to times its own weight of water. This influx of water makes the polymer swell and take up more space.
Name some practical uses for absorbent polymers. How is the fake snow powder like slush powder? How is it different? Is this a chemical or a physical change?
What kind of uses are there for this kind of polymer? Details Activity Length 15 mins. Objectives Name some practical uses for absorbent polymers. Investigate the properties of common polymers.
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