Describe what happens to the particles of a solid, in terms of movement and kinetic energy, as it is heated to its melting point, including whether this is a physical or chemical change.

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The solid has a more definite shape and volume. The particles are locked into place. It cannot be further compressed due to the bond that exists between the molecules. The kinetic energy of the molecules is close to none because the molecules are so close and so compact with each other. If it is melted, the molecules tend to vibrate from their place and their kinetic energy increases. This change is a physical change. 

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