SALGADO 4TB CAN START: DISCOVERY OF THE ENVIRONMENT

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This experience has been very good to understand the change of state of matter, in this case from solid to liquid and from liquid to solid. We could not take pictures but it is a very simple process!
A google image material package gelatin plates (they sell any super) 3 water bowls Spoon a large saucepan cda scissors One can gauge a stove liquid food coloring. Small jars (one for children). Procedure shows a package cda of gelatin to the plates and cut into 3 pieces. google image were getting soaked in the bowls with water for about 10 '. Let us see how the gelatin plate s' softens. cda Meanwhile google cda image s' heats water without cda boiling it. For the nine plates containing a package we need 3/4 liter approx. With hot water, there we put the gelatin that has been soaked. We stirring until it is completely dissolved. With the spoon we delivering water jars gelatinada to each individual and puts it to taste a few drops of dye. In our case, the result will taste, but whoever can put it at home. Google cda cool image in the fridge OAL classroom and we have jelly dessert. What we have observed? Initially gelatin had a plastic structure, and even made noise in soft plastic doblegàvem if something cda (no one believed that cage sheet gelatin) All was clear that to move from solid to liquid and heat we needed to get the solid needed cold. Plastic sheet we spent a soft texture, like rubber. I put it all down in hot water has dissolved completely. Pour it in the cups we have seen that it was liquid, but as it was cooling cda down (eventually) found that consistency was more solid.
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SALGADO 4TB CAN START: DISCOVERY OF THE ENVIRONMENT
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