What is a physical change?
Chemical changes

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•
Chemistry
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A change in the size, shape, or state of matter without forming new substances.
2.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A change in which new substances are formed.
3.
FLASHCARD QUESTION
Front
What happens during a chemical change?
Back
New substances are created, often with different properties than the original substances.
4.
FLASHCARD QUESTION
Front
What is an example of a physical change?
Back
Melting ice or breaking a glass.
5.
FLASHCARD QUESTION
Front
What is an example of a chemical change?
Back
Burning wood or rusting iron.
6.
FLASHCARD QUESTION
Front
What indicates a chemical change has occurred?
Back
Signs include color change, temperature change, gas production (bubbles), and formation of a precipitate.
7.
FLASHCARD QUESTION
Front
Can a physical change be reversed?
Back
Yes, physical changes can often be reversed, such as freezing and melting water.
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