Physical vs. Chemical Changes in Matter

Flashcard
•
Science
•
6th - 8th Grade
•
Hard
+2
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 changes in state, shape, or size.
Tags
NGSS.MS-PS1-4
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 rearrangement of atoms and is often accompanied by energy changes, color changes, or the production of gas.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
What are some indicators of a chemical change?
Back
Indicators of a chemical change include color change, temperature change, gas production (bubbles), formation of a precipitate, and changes in odor.
Tags
NGSS.MS-PS1-2
4.
FLASHCARD QUESTION
Front
Is burning biomass a physical or chemical change?
Back
Burning biomass is a chemical change because it involves a reaction with oxygen that produces new substances, such as ash and gases.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
FLASHCARD QUESTION
Front
What happens when a glowstick is bent and shaken?
Back
Bending a glowstick cracks an internal container, allowing chemicals to mix and produce light through a chemical change.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
6.
FLASHCARD QUESTION
Front
What is the difference between a physical change and a chemical change?
Back
A physical change does not alter the chemical composition of a substance, while a chemical change results in the formation of new substances.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-4
7.
FLASHCARD QUESTION
Front
What is an example of a physical change?
Back
An example of a physical change is splitting logs into pieces. The logs remain wood, but their size and shape change.
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