Substances and Mixtures
Authored by Charles Martinez
Chemistry
7th Grade
NGSS covered
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can compounds be changed into simpler substances?
by physical separation
by chemical changes
they cannot be changed
by physical reactions
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A pure substance that cannot be broken down into other substances by chemical or physical means.
compound
atom
mixture
element
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A mixture that is uniform and well mixed is _____.
homogeneous
hetergeneous
pure substance
compoud
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The picture shown here is what type of mixture?
homogeneous
hetergeneous
pure substance
element
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This diagram represents a _____.
pure substance that is a compound
mixture of elements
pure substance that is an element
mixture of compounds
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
45 sec • 12 pts
This diagram represents a _____.
pure substance that is a compound
mixture of elements
pure substance that is an element
mixture of compounds
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A pure substance made up of two or more elements that are chemically combined.
compound
atom
mixture
element
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