Physical and Chemical Changes
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Science
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8th Grade
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Medium
+1
Standards-aligned
Joseph F Mcguinness
Used 919+ times
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8 Slides • 5 Questions
1
Physical and Chemical Changes
Feb. 1st-5th
2
Multiple Choice
Warm up. Look at the image, and calculate which formula contains the most atoms of Oxygen
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Physical and Chemical Changes Notes
1. Get out your Journal
2. Turn to a clean page
3. Format the page like you see to the right
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Physical Changes (Term)
Are easily reversible, have no new products, and are often just a change of state of matter (Definition)
Examples include:
Solid to liquid
Liquid to gas
Gas to liquid
Liquid to solid
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Chemical Changes (Term)
Are not easily reversed, new products are formed, reactants are used up, have evidence of heat/light/sound/fizzling occur, can produce electricity, or have a precipitate form (Definition)
Example: Wood Burning
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Multiple Choice
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Multiple Choice
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Reactants (Term)
The substances in a chemical reaction that chemically combine
Examples would be the combination of sodium and chlorine
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Products (Term)
The new substance made after a chemical reaction
Examples include Salt (NaCl) after sodium and chlorine combine
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Precipitates (Term)
A solid that forms after two liquids chemically react (definition)
Examples would include the combination of milk and vinegar
11
Multiple Choice
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Evidence of a chemical change
Abbreviation to remember = City, Girls, Like, To, Order, Pizza
C: color change
G: Gas
L: Light is produced
T: Temperature change
O: odor is produced
P: Precipitate is formed
13
Multiple Choice
Physical and Chemical Changes
Feb. 1st-5th
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