What is a chemical change?
chemical and Physical Change

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•
Science
•
5th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A chemical change is a process where substances combine or break apart to form new substances with different properties.
2.
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.
3.
FLASHCARD QUESTION
Front
What is an example of a chemical change?
Back
Exploding fireworks is an example of a chemical change because it produces new substances.
4.
FLASHCARD QUESTION
Front
What is an example of a physical change?
Back
Melting wax is an example of a physical change because the wax changes state but remains the same substance.
5.
FLASHCARD QUESTION
Front
Why is it important to record properties before and after mixing substances?
Back
It helps to determine if a new substance has formed and to compare the properties of the mixtures.
6.
FLASHCARD QUESTION
Front
What does it mean if the properties of substances change when mixed?
Back
It indicates that a chemical change may have occurred, suggesting that a new substance has formed.
7.
FLASHCARD QUESTION
Front
What should remain constant in an experiment to test chemical changes?
Back
The substances that are combined in each experiment should be the same.
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