What is a physical change?
Physical and Chemical Changes in Science

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Science
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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 burning, rusting, and digestion.
3.
FLASHCARD QUESTION
Front
How does temperature affect chemical reactions?
Back
Increasing the temperature generally speeds up chemical reactions because it increases the kinetic energy of the particles, causing them to move faster and collide more often.
4.
FLASHCARD QUESTION
Front
What happens to particles during a physical change?
Back
During a physical change, the arrangement and movement of particles may change, but the particles themselves remain the same.
5.
FLASHCARD QUESTION
Front
What happens to particles during a chemical change?
Back
During a chemical change, the bonds between atoms are broken and new bonds are formed, resulting in the creation of new substances.
6.
FLASHCARD QUESTION
Front
What is an example of a physical change?
Back
An example of a physical change is melting ice into water.
7.
FLASHCARD QUESTION
Front
What is an example of a chemical change?
Back
An example of a chemical change is burning wood, which produces ash and gases.
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