What is a physical change?
Chemical and Physical Changes

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Science
•
5th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A physical change is a change that does not alter the chemical composition of a substance. Examples include melting, freezing, and boiling.
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. The atoms in the reactants rearrange to form products with different characteristics.
3.
FLASHCARD QUESTION
Front
Is melting ice a chemical or physical change?
Back
Melting ice is a physical change.
4.
FLASHCARD QUESTION
Front
What happens to the molecules during a physical change?
Back
The molecules may change their state (solid, liquid, gas) but their chemical structure remains the same.
5.
FLASHCARD QUESTION
Front
Can a physical change be undone?
Back
Yes, physical changes can often be reversed, such as freezing water back into ice.
6.
FLASHCARD QUESTION
Front
Can a chemical change be undone?
Back
No, chemical changes usually cannot be reversed, as new substances are formed.
7.
FLASHCARD QUESTION
Front
What is an example of a physical change?
Back
An example of a physical change is boiling water.
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