Evidence of Chemical Reaction

Quiz
•
Science
•
8th Grade
•
Hard
+2
Standards-aligned
Charles Martinez
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 12 pts
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tags
NGSS.MS-PS1-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of change is occurring when the paper is heated?
Tags
NGSS.MS-PS1-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student mixes two clear liquids together. After a few minutes, a white powdery solid can be seen settling on the bottom of the test tube. Which of the following is a conclusion that the student can draw based on these observations? The two clear liquids-
were pure substances before they were mixed
are toxic and should be handled with extreme caution
have gone through a chemical change in which a new substance called a precipitate was produced
have been stored too long and are no longer good
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student added white crystals to a clear liquid. The crystals dissolved in the liquid. After a few seconds, the liquid became quite warm and then turned bright red in color. Indications that a chemical change was taking place could be observed when –
the white crystals were added to the clear liquid.
the crystals dissolved in the liquid leaving only the liquid visible
There are no indications of chemical change
the temperature of the liquid increased and an unexpected color change occurred.
Tags
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A granular substance is added to a liquid. Which of the following would provide evidence to suggest a chemical change has taken place?
The liquid gives off heat.
The granules dissolve completely.
The volume of the liquid increases.
The granules seem to get smaller.
Tags
NGSS.MS-PS1-2
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