1. The temperature of a pure substance during healthy is _______.
2. During _____, a substance to ____ substance from mixtures.
3. Appearance may not be the best basis to _____ substances from mixtures.
4. A substance has a ____ melting point while a mixture melts over a range of temperatures.
5. As _____ is applied to a solid, it's temperature will increase until the melting point is reached.

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