What is a chemical change?
Chemical and Physical Changes

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Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A chemical change is a process that results in the formation of one or more new substances with different properties from the original substances.
2.
FLASHCARD QUESTION
Front
What is a physical change?
Back
A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.
3.
FLASHCARD QUESTION
Front
What is an endothermic process?
Back
An endothermic process is a reaction or change that absorbs energy from its surroundings, usually in the form of heat.
4.
FLASHCARD QUESTION
Front
What is an exothermic process?
Back
An exothermic process is a reaction or change that releases energy to its surroundings, usually in the form of heat.
5.
FLASHCARD QUESTION
Front
Give an example of a chemical change.
Back
Examples include rusting of iron, burning wood, or baking bread.
6.
FLASHCARD QUESTION
Front
Give an example of a physical change.
Back
Examples include melting ice, cutting paper, or dissolving sugar in water.
7.
FLASHCARD QUESTION
Front
What indicates a chemical change has occurred?
Back
Indicators include color change, formation of a precipitate, formation of gas/bubbles, and temperature change.
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