Chemical and Physical Changes

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Physical and Chemical Changes

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Presentation transcript:

Chemical and Physical Changes Another Look at Chemical and Physical Changes Physical Changes Chemical Changes The matter is different. The old matter is no longer present. The original matter cannot be recovered. The particles of the substance are broken apart, and the atoms are rearranged into new particles, forming a new substance. The matter is the same. ( change in size or shape) The original matter can be recovered. (change in state of matter) The particles of the substance are rearranged.

Evidence of a Chemical Change Formation of a gas Temperature Change Evidence of a Chemical Change Formation of a precipitate Color change

Frying an Egg

Molding Clay

Bread Toasting

Hand Sanitizer Evaporating from you hands

Dissolving Sugar in Water

Butter Melting on Corn

Sour Milk

Hydrogen Peroxide On a Cut

Fireworks