Physical and Chemical Smore

Physical and Chemical Properties and Changes

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Physical Property

Book Definition

Any property used to characterize matter and energy and their reactions.

Personal Definition

You use your 5 senses to characterize things.

Examples

- The feel of texture.

- The smell of a rose.

- The taste of enchiladas.

Sketch

Tasting enchiladas.

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Physical Change

Book Definition

A change in matter that does not affect its chemical composition.

Personal Definition

When something changes in the same property.

Examples

- Paper is still paper if you cut it.

- Ice, Vapor, and Water are all the same thing.

- A chair is still a chair if it breaks.

Sketch

Ice, Vapor, and Water.

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Chemical Property

Book Definition

A property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed.

Personal Definition

Something that changes; something that effects an object.

Examples

- Rusting metal.

- Rotting banana.

- 'Falling apart' old house.

Sketch

A metal chain rusts over time.

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Chemical Change

Book Definition

A chemical reaction; a process that changes substances into new substances.

Personal Definition

When something changes into something new.

Examples

- Wood burns to ash.

- Digesting dinner.

- Mixing baking soda with vinegar.

Sketch

Burning wood eventually turns into ash.

Video

Celebrate Chemistry -- Baking Soda Volcano

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Preston S. Period 6- Mrs. Graves, Science