Physical Change and Chemical Change

Flashcard
•
Science
•
7th Grade
•
Hard
+1
Standards-aligned
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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 melting, freezing, and dissolving.
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 chemical composition of the substance. Examples include burning, rusting, and bleaching.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
Is melting ice a physical or chemical change?
Back
Melting ice is a physical change because it changes the state of water from solid to liquid without changing its chemical composition.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
4.
FLASHCARD QUESTION
Front
Is burning wood a physical or chemical change?
Back
Burning wood is a chemical change because it transforms the wood into ash, smoke, and gases, changing its chemical composition.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
FLASHCARD QUESTION
Front
What happens during a chemical change?
Back
During a chemical change, bonds between atoms are broken and new bonds are formed, resulting in the creation of new substances.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
6.
FLASHCARD QUESTION
Front
What are some indicators of a chemical change?
Back
Indicators of a chemical change include color change, temperature change, gas production, and the formation of a precipitate.
Tags
NGSS.MS-PS1-2
7.
FLASHCARD QUESTION
Front
Is dissolving sugar in water a physical or chemical change?
Back
Dissolving sugar in water is a physical change because the sugar can be recovered by evaporating the water, and its chemical composition remains unchanged.
Tags
NGSS.MS-PS1-2
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