These stickers change colour when you touch them*! Thermochromic Self-adhesive Liquid crystal Shapes 25°C to 30°C (Dimensions 19mm x 19mm) Each pack contains 5 liquid crystal jigsaw shapes These shapes can be applied to Books, Table Tops, Mobile Phones etc. Our Thermocolour Shapes are self-adhesive and consist of a thin layer of liquid crystal that has been printed on to a black background. Liquid Crystals are organic chemicals with twisted helical molecular structures, which expand or contract. Touch the black plastic shape and create a beautiful thermal imprint. Each colour represents a different temperature. This product reacts to touch many times. Thermocolour products are exciting, captivating tools for use in the learning environment. These products change colour at different temperatures allowing students to visually connect with what is happening. The Thermosmart® range of educational products can be used in all 4 Key Stages of the Science curriculum. Check out our full range of liquid crystal shape – Stars, Hearts, Squares, Circles, Jigsaw pieces and many more.......... *These shapes are very sensitive and hate cold hands and low temperatures! Make sure your hands are warm before you start having fun.
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