What is a physical change?
Physical and Chemical Changes

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•
Science
•
7th 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. It involves a chemical reaction and changes the composition of the original substance. Examples include rusting, burning, and digestion.
3.
FLASHCARD QUESTION
Front
Give an example of a physical change.
Back
An example of a physical change is ice melting into water.
4.
FLASHCARD QUESTION
Front
Give an example of a chemical change.
Back
An example of a chemical change is iron rusting when exposed to moisture.
5.
FLASHCARD QUESTION
Front
What are some indicators of a chemical change?
Back
Indicators of a chemical change include color change, temperature change, gas production, and the formation of a precipitate.
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 their chemical structure remains the same.
7.
FLASHCARD QUESTION
Front
What happens to the molecules during a chemical change?
Back
During a chemical change, the bonds between atoms are broken and new bonds are formed, resulting in new substances.
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