To shrink rubber, expose the material to extreme, direct heat, and then form it into the desired shape. Heat the rubber material with a blow dryer or hot air gun in an outdoor setting to minimize the risk of fire or injury.Continue Reading
Hang the rubber band or object from a hook or nail on an exterior wall or structure away from your clothing and skin. Attach a weight or heavy object to the rubber material to stretch it before shrinking. Wear safety goggles to protect the eyes from heat.
Aim a hot air gun or blow dryer directly toward the rubber. A heat vacuum or blow torch should only be used by a trained professional in a secure, supervised environment. Allow the heat to penetrate the rubber for at least five minutes. Avoid heat elements that can spark a flame. The rubber may begin to produce a strong smell when heated.
Form the rubber band or material into the shape desired while it is warm. Wear protective gloves to avoid burns to the skin. Rubber only shrinks when warm or heated. As the temperature cools, the rubber expands.
Spatulas are used for measuring solids, moving objects and scraping material out of beakers. Spatulas can be used for more purposes as well, including slipcovers and weights.Full Answer >
Perform an acid-base titration in the lab by setting up a burette, dissolving the material for analysis in water in a flask, adding an indicator, recording an initial reading of the burette, adding titrant until the color changes and taking the final reading. The experiment usually takes less than an hour.Full Answer >
Activities on Pearson Interactive Science involve photosynthesis, gravity, material properties, and protecting the environment and its resources. Interactive Science has programs spanning grades K through eight.Full Answer >
As of 2014, a novel material called upsalite is the world's most water-absorbent material. Made of nanostructured anhydrous magnesium carbonate, this material is capable of absorbing several hundred times its weight in water, even in low-humidity conditions. Other record-breaking water absorbent materials include sodium methacrylate, hygroscopic zeolites and poly(N-isopropylacrylamide)-coated cotton fabrics.Full Answer >