physical and chemical changes. objective: chemical/physical change □ the learner will be able to...
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![Page 1: Physical and Chemical Changes. Objective: Chemical/Physical Change □ The learner will be able to distinguish between a physical and chemical change](https://reader036.vdocuments.us/reader036/viewer/2022062315/5697c00d1a28abf838cc9259/html5/thumbnails/1.jpg)
Physical and Chemical Changes
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Objective: Chemical/Physical Change
□ The learner will be able to distinguish between a physical and chemical change.
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Matter
□ Matter is everywhere. □ Matter is anything that takes up
space and has mass. □ Matter is constantly experiencing
both chemical and physical changes.
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Physical Change□ Physical changes occur when
matter changes its property but not its chemical nature.
□ Physical property changes could include a change in: texture, shape, size, color, odor, volume, mass, weight, and density.
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Physical Change
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Physical Change-Tell me why!
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Mixtures
When two or more substances are combined together we call it a mixture.
A mixture is a another kind of physical change.
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Physical Changes
meltingevaporationcondensationfreezing*sublimation*deposition
solid to liquidliquid to gasgas to liquidliquid to solidsolid to gas (sk
gas to solid
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Chemical Change
Chemical changes are changes matter undergoes when it becomes new or different matter.
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Possible Signs of a Chemical Change
□Heat or light is produced that wasn’t there before.
□Fumes or smoke are produced.
□The substance smells different.
□bubbling or fizzing
□The substance changes color.
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Chemical Change□ A chemical change
occurs when fireworks are used. Fireworks are made of metals such as magnesium and copper. These change chemically as they light up the sky.
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Chemical Change-Tell me why!
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Is it a chemical or physical change?
□ Sugar dissolving in tea
•Chemical Change
•Physical Change
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Is it a chemical or physical change?
□ Logs burning
•Chemical Change
•Physical Change
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Is it a chemical or physical change?
□ Breaking water up by separating it into hydrogen and oxygen
•Chemical Change
•Physical Change
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Is it a chemical or physical change?
□ Cutting paper
•Chemical Change
•Physical Change
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Is it a chemical or physical change?
□ Crushing an aspirin
•Chemical Change
•Physical Change
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Is it a chemical or physical change?
□ Metal rusting
•Chemical Change
•Physical Change
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Is it a chemical or physical change?
□ An egg rotting
•Chemical Change
•Physical Change
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Is it a chemical or physical change?
□ An egg breaking
•Chemical Change
•Physical Change
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Writing Activity
□ Write a paragraph about the difference between a chemical and physical change. Give examples of each.