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A good website to explain the difference between chemical and physical changes:

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Chemical changes take place at the molecular level. A chemical change produces a new substance. Another way to think of it is that a chemical change accompanies a chemical reaction. Examples of chemical changes include combustion (burning), cooking an egg, rusting of an iron pan, and mixing hydrochloric acid and sodium hydroxide to make salt and water.

Physical changes are concerned with energy and states of matter. A physical change does not produce a new substance, although the starting and ending materials may look very different from each other. Changes in state or phase (melting, freezing, vaporization, condensation, sublimation) are physical changes. Examples of physical changes include crushing a can, melting an ice cube, and breaking a bottle.

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Chemical changes take place at the molecular level. A chemical change produces a new substance. Another way to think of it is that a chemical change accompanies a chemical reaction. Examples of chemical changes include combustion (burning), cooking an egg, rusting of an iron pan, and mixing hydrochloric acid and sodium hydroxide to make salt and water.

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A changes rap!

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This video is from the elementary Changes in Matter unit in the Science4Us K-2nd grade science curriculum. http://www.science4us.com/elementary-physical-science/matter/changes-in-matter/ This fun song and animation, from the Science4Us K2 Matter unit, highlights a number of physical changes and chemical changes that occur on a family trip to the beach.

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A song to help understanding physical and chemical changes:

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The PROPERTIES Song - Mr. Edmonds Rock with the tune from  "Oblah-Di Oblah-Da"

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Find out the major differences between physical and chemical properties of matter. Do you remember the song, "Oblah-Di Oblah-Da?" If so, this will be easy to sing. Words and Chords are in "Docs" section on TeacherTube for "dsecms".

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This video shows using dry ice and goo to make a big bubble.

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dry ice experiment Halloween fun with bubbles See www.stevespanglerscience.com for more great science experiments and supplies!

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This video shows using special powder to make a volcano but also using fire.

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Physical Science For Children All About Properties Of Matter

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Chemical & Physical Changes of Matter CLEAR & SIMPLE

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CLEAR & SIMPLE SCIENCE - Chemical & Physical Changes of Matter. This video explains how differentiate between physical and chemical changes of matter. Matter can change, and it is important to differentiate if a physical change (change is state) occured, or a chemical change (change in the chemicals), has occured.