What is a physical change?
Physical and Chemical Changes #2

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Science
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8th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
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 boiling), shape, or size.
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 changes the molecular structure of the substance. Examples include burning, rusting, and digestion.
3.
FLASHCARD QUESTION
Front
Is boiling water a physical or chemical change?
Back
Boiling water is a physical change because it changes the state of water from liquid to gas without changing its chemical composition.
4.
FLASHCARD QUESTION
Front
Is bending metal a physical or chemical change?
Back
Bending metal is a physical change because it alters the shape of the metal without changing its chemical structure.
5.
FLASHCARD QUESTION
Front
What happens when paper is ripped?
Back
Ripping paper is a physical change because the paper's physical form is altered, but its chemical composition remains the same.
6.
FLASHCARD QUESTION
Front
What is an example of a chemical change?
Back
An example of a chemical change is the burning of a candle, where the wax undergoes a chemical reaction to produce heat, light, carbon dioxide, and water.
7.
FLASHCARD QUESTION
Front
What are indicators of a chemical change?
Back
Indicators of a chemical change include color change, temperature change, gas production, and the formation of a precipitate.
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