Physical vs Chemical Changes
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
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 changes in state (like melting or freezing) and changes in appearance (like cutting or 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 the breaking and forming of bonds between atoms. Examples include rusting, burning, and cooking.
3.
FLASHCARD QUESTION
Front
What happens to the atoms during a chemical change?
Back
During a chemical change, atoms rearrange and link up in different ways to form new substances.
4.
FLASHCARD QUESTION
Front
What is an example of a physical change that results in a color change?
Back
An example is when a red candy dissolves in water, turning the water pink.
5.
FLASHCARD QUESTION
Front
What is an example of a chemical change?
Back
An example of a chemical change is when iron rusts, forming iron oxide.
6.
FLASHCARD QUESTION
Front
What is the difference between a physical change and a chemical change?
Back
A physical change does not alter the chemical composition of a substance, while a chemical change results in the formation of new substances.
7.
FLASHCARD QUESTION
Front
What is an indicator of a chemical change?
Back
Indicators of a chemical change include color change, gas production, temperature change, and the formation of a precipitate.
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