Changes in Matter
Flashcard
•
Science
•
7th Grade
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the difference between a physical change and a chemical change?
Back
A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances with different properties.
Tags
NGSS.MS-PS1-4
2.
FLASHCARD QUESTION
Front
What is a subscript in a chemical formula?
Back
A subscript is a small number written below and to the right of an element symbol in a chemical formula that indicates the number of atoms of that element in a molecule.
3.
FLASHCARD QUESTION
Front
Give an example of a physical change.
Back
Chopping food is an example of a physical change.
4.
FLASHCARD QUESTION
Front
Give an example of a chemical change.
Back
Burning wood is an example of a chemical change.
Tags
NGSS.MS-PS1-2
5.
FLASHCARD QUESTION
Front
How many atoms of hydrogen (H) are in the molecule C6H12O6?
Back
12
Tags
NGSS.MS-PS1-1
6.
FLASHCARD QUESTION
Front
What is the chemical formula for table salt?
Back
NaCl.
Tags
NGSS.MS-PS1-1
7.
FLASHCARD QUESTION
Front
Is NaCl a compound or an element?
Back
NaCl is a compound.
Tags
NGSS.MS-PS1-1
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