Making Instant Snow is an awesome thing to watch and a fun science experiment as well! It's a super absorbent polymer that begins as a normal looking white powder but when water is added it fluffs up to over 100 times its original size. The end product looks exactly like real snow. Many Hollywood movie makers use it to make those insanely realistic snow scenes without having to deal with melting ice and a watery mess. So lets do the instant snow experiment.
Watch Video: Make Instant Snow Experiment
Materials: - Instant Snow Powder (Ebay or Science Store) - Water - Glass - Container to play with snow
Process To Make Instant Snow Experiment - Measure out 1 scoop or tablespoon of the snow powder. - Put it in an empty glass (clear glasses work best) - Measure out 2 ounces of water in a separate glass. - Very quickly and at one time dump all the water into the glass with the powder. - Don't take your eyes off the snow powder because it happens fast. - Watch the powder erupt into snow!
The Science Behind Making Instant Snow Experiment Instant Snow is made of tiny super absorbent polymers which are long chains of molecules linked together. It's similar to the substance found in baby diapers. However, there is a difference. Instant Snow not only absorbs the added water like a diaper but also expands to 100 times it normal size through a process called osmosis. It is a great demonstration of a physical reaction. In a physical reaction the substance in the experiment does not change. Instant Snow acts like thousands of little sponges when water is added.
It also can be used to demonstrate Conservation of Mass. When Instant Snow is left to dry for several days, the water will evaporate and it will return to it's normal size. A great science project would be to weigh the instant snow powder before the experiment and take note. Then weigh it again after the water has been added and the polymer molecules have fully expanded. Then allow the Instant Snow to sit out and dry / evaporate for several days noting the time it takes to return to normal size. Once all the water has evaporated once again weigh and see how it compares to the starting weight. Now go get some friends and do the make instant snow experiment.