Physical vs Chemical Changes
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
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 that affects one or more physical properties of a substance without altering its chemical composition. Examples include changes in shape, size, or state (like melting or freezing).
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 includes changes such as burning, rusting, or cooking.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
Which of the following is NOT an example of a chemical change?
Back
Breaking a pencil is NOT an example of a chemical change; it is a physical change.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
4.
FLASHCARD QUESTION
Front
What evidence indicates a physical change has occurred?
Back
Evidence of a physical change includes changes in shape, size, or state, but does not produce a new substance.
5.
FLASHCARD QUESTION
Front
Is melting butter for popcorn a chemical or physical change?
Back
Melting butter for popcorn is a physical change.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
NGSS.MS-PS3-5
6.
FLASHCARD QUESTION
Front
What is an example of a chemical reaction?
Back
An example of a chemical reaction is rust forming on iron.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
FLASHCARD QUESTION
Front
What happens to the molecules during a physical change?
Back
During a physical change, the molecules may change their arrangement or state, but their chemical structure remains the same.
Tags
NGSS.MS-PS1-4
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