Physical and Chemical Changes

Flashcard
•
Science
•
6th - 8th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a physical change?
Back
A physical change is a change in the size, shape, or state of matter without altering its chemical composition.
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, often involving a change at the molecular level.
3.
FLASHCARD QUESTION
Front
Give an example of a physical change.
Back
Examples include crumpling paper, melting ice, or dissolving salt in water.
4.
FLASHCARD QUESTION
Front
Give an example of a chemical change.
Back
Examples include rusting of iron, burning wood, or souring milk.
5.
FLASHCARD QUESTION
Front
What happens to the molecules during a physical change?
Back
The molecules may change their arrangement or state, but their chemical structure remains the same.
6.
FLASHCARD QUESTION
Front
What happens to the molecules during a chemical change?
Back
The molecules rearrange to form new substances with different chemical properties.
7.
FLASHCARD QUESTION
Front
Is dissolving salt in water a physical or chemical change?
Back
It is a physical change because the salt can be recovered by evaporating the water.
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