physical and chemical changes. what is a physical change? a physical change changes the form of a...
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![Page 1: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/1.jpg)
Physical and Chemical Changes
![Page 2: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/2.jpg)
What is a Physical Change?
• A physical change changes the form of a substance, but does not create anything new.
• Starting Substance = ending substance
Example:
Making Orange Juice
An ice cube melting
![Page 3: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/3.jpg)
What is a Chemical Change?
• Substances are changed into something new with different properties that the original substance.
• Starting substance = something new
Example:
Baking a Cake
Wood burning
![Page 4: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/4.jpg)
5 Signs of a Chemical Change
1. Color Change
2. Precipitation
![Page 5: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/5.jpg)
Precipitation
• Precipitation – the solid that forms from a solution during a chemical reaction.
• It looks like a cloudy solid in an otherwise clear solution.
![Page 6: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/6.jpg)
5 Signs of a Chemical Change
3. Gas Production
4. Temperature Change
![Page 7: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/7.jpg)
5 Signs of a Chemical Change
5. Changes in Characteristic Properties (odor, light given off)
![Page 8: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/8.jpg)
Chemical or Physical Change?
• Cutting paper?
• Physical
![Page 9: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/9.jpg)
Chemical or Physical Change?
• Ice melting?
• Physical
![Page 10: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/10.jpg)
Chemical or Physical Change?
• Toast burning?
• Chemical
![Page 11: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/11.jpg)
Chemical or Physical Change?
• Rocket fuel burning?
• Chemical
![Page 12: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/12.jpg)
Chemical or Physical Change?
• Sawing wood?
• Physical
![Page 13: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/13.jpg)
Chemical or Physical Change?
• Metal rusting?
• Chemical
![Page 14: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/14.jpg)
Chemical or Physical Change?
• Disappearing puddle?
• Physical
![Page 15: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/15.jpg)
Chemical or Physical Change?
• Candle burning?
• Chemical
![Page 16: Physical and Chemical Changes. What is a Physical Change? A physical change changes the form of a substance, but does not create anything new. Starting](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649f345503460f94c50bfd/html5/thumbnails/16.jpg)
Chemical or Physical Change?
• Dry ice?
• Physical