Physical and Chemical Change Reading Check

Flashcard
•
Science
•
8th Grade
•
Hard
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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 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 the rearrangement of atoms.
3.
FLASHCARD QUESTION
Front
Give an example of a physical change.
Back
An ice cube melting is an example of a physical change.
4.
FLASHCARD QUESTION
Front
What happens to a copper penny over time?
Back
A copper penny can undergo a chemical change and turn greenish due to the formation of copper carbonate.
5.
FLASHCARD QUESTION
Front
What is an indicator that a chemical change has occurred?
Back
Indicators of a chemical change include the formation of a new substance, color change, gas production, and temperature change.
6.
FLASHCARD QUESTION
Front
What is rusting?
Back
Rusting is a chemical change that occurs when iron reacts with oxygen and moisture in the air, forming iron oxide.
7.
FLASHCARD QUESTION
Front
How can burning paper be classified?
Back
Burning paper is a chemical change because it results in the formation of new substances, such as ash and gases.
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