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.
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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.
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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.
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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.
Video
Celebrate Chemistry -- Baking Soda Volcano