What is a physical change?
Chemical and Physical Properties

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Science
•
7th - 9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include hammering wood, melting ice, or dissolving sugar in water.
2.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A chemical change is a change that results in the formation of new chemical substances. Examples include burning wood, rusting iron, or cooking an egg.
3.
FLASHCARD QUESTION
Front
What is an example of a physical property?
Back
State of matter (solid, liquid, gas) is an example of a physical property.
4.
FLASHCARD QUESTION
Front
What is rusting?
Back
Rusting is a chemical change that occurs when iron reacts with oxygen and moisture in the air, forming iron oxide.
5.
FLASHCARD QUESTION
Front
What happens to a copper penny over time?
Back
A copper penny can undergo a chemical change, turning greenish due to the formation of copper carbonate when it reacts with carbon dioxide and moisture.
6.
FLASHCARD QUESTION
Front
Is crumpling paper a physical or chemical change?
Back
Crumpling paper is a physical change because it alters the shape of the paper without changing its chemical composition.
7.
FLASHCARD QUESTION
Front
What is flammability?
Back
Flammability is a chemical property that describes how easily a substance can catch fire and burn.
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