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New Science Spark Book 7
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Chapter 7 - Changes of Matter
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Q 1
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MEDIUM
7th CBSE
IMPORTANT
Earn 100
Name the characteristic of a substance that never changes during a physical change.
Important Questions on Changes of Matter
HARD
7th CBSE
IMPORTANT
New Science Spark Book 7
>
Chapter 7 - Changes of Matter
>
HOTS
>
Q 2
Is the popping of a popcorn a physical change or a chemical change? Justify.