What is a physical change?
Physical and Chemical Changes

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Science
•
8th 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 melting, freezing, and dissolving.
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 rusting, burning, and cooking.
3.
FLASHCARD QUESTION
Front
How can you identify a physical change?
Back
You can identify a physical change if the substance's appearance changes but its chemical identity remains the same. No new substances are formed.
4.
FLASHCARD QUESTION
Front
How can you identify a chemical change?
Back
You can identify a chemical change if the substance undergoes a transformation that produces one or more new substances, often accompanied by color change, gas production, or temperature change.
5.
FLASHCARD QUESTION
Front
Is melting ice a chemical or physical change?
Back
Melting ice is a physical change.
6.
FLASHCARD QUESTION
Front
What happens to the molecules during a physical change?
Back
During a physical change, the arrangement of molecules may change, but the molecules themselves remain the same.
7.
FLASHCARD QUESTION
Front
What happens to the molecules during a chemical change?
Back
During a chemical change, the bonds between molecules break and new bonds form, resulting in the creation of new substances.
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