Chemical & Physical Changes

Flashcard
•
Science
•
6th - 7th Grade
•
Hard
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 state (like melting or freezing), 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
What happens when glass is broken?
Back
Breaking glass is a physical change because it alters the shape and size of the glass without changing its chemical composition.
4.
FLASHCARD QUESTION
Front
What happens when wood is burned?
Back
Burning wood is a chemical change because it transforms the wood into ash, smoke, and gases, creating new substances.
5.
FLASHCARD QUESTION
Front
What kind of change is toasting bread?
Back
Toasting bread is a chemical change because it involves a reaction that changes the bread's chemical structure, resulting in a different flavor and texture.
6.
FLASHCARD QUESTION
Front
What happens when paper is ripped?
Back
Ripping paper is a physical change because it changes the size and shape of the paper but does not alter its chemical composition.
7.
FLASHCARD QUESTION
Front
What is rusting?
Back
Rusting is a chemical change that occurs when iron reacts with oxygen and moisture in the air, forming iron oxide (rust), which is a different substance.
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