discusion.docx - Discussion Section 1-Define the Melting...

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Discussion Section? 1-Define the Melting point? A: the Melting point is the temperature at which a solid becomes a liquid at a normal atmospheric pressure . 2-Describe the process of melting in general? A: In our first activity, we took the solid form of water and left it out until it was in a liquid form. This process of turning a solid into a liquid is called melting. In order to melt a solid substance, you have to add heat to it. When you do this, the molecules in the substance start getting excited and begin to move around more. This moving around makes it difficult for the particles in the substance to hold on to each other as tightly as they do in the solid phase, so they break apart, and the substance turns to liquid. Heat can be added gradually or quickly to a solid to make it melt. For our ice cubes, we simply took them from a cold environment and put them in a warmer one. This added heat to the frozen water, causing it to slowly melt in the glass. If we had put the ice cubes and the glass in the fridge, it would have taken longer for them to melt because it is not as warm in the fridge as it is out on the kitchen counter. If we had put those ice cubes and the
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