Chemical & Physical Changes

Fire is evidence of a chemical change. © Ariadna, morguefile.com

If you dissolve sugar in water, is that a chemical or a physical change? How about when you heat sugar to the point where it changes color? If you're unsure how to tell the difference between a chemical and physical change, keep in mind a chemical change produces a new substance while the components of a physical change are the same before and after the process.
Examples of Chemical & Physical Changes | Phase Changes Quiz