Unit 4 Physical and Chemical Changes

Flashcard
•
Science
•
6th - 8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the Law of Conservation of Mass state?
Back
Matter cannot be gained or lost in a chemical reaction.
2.
FLASHCARD QUESTION
Front
What role does chlorophyll play in photosynthesis?
Back
Chlorophyll absorbs light energy from the sun.
3.
FLASHCARD QUESTION
Front
What is evidence of a chemical reaction?
Back
Bubbles forming.
4.
FLASHCARD QUESTION
Front
What is a chemical property?
Back
A characteristic of a substance that can only be observed during a chemical reaction, such as flammability.
5.
FLASHCARD QUESTION
Front
Which of the following is not a chemical property?
Back
Boiling.
6.
FLASHCARD QUESTION
Front
What is a physical change?
Back
A change that affects one or more physical properties of a substance without altering its chemical composition.
7.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A change that results in the formation of new chemical substances.
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