Intro Chemical Reactions

Quiz
•
Science
•
7th Grade
•
Hard
+3
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A different chemical substance is formed when _____.
water boils
metal rusts
ice melts
rock is crushed
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Digesting your food is an example of
chemical change
physical change
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You are testing unknown gas A with a small flame test. You observe that when gas A is exposed to the flame the flame turns from orange to blue. Using the provided chart, determine which gas is most likely gas A.
Oxygen
Methane
Carbon Dioxide
Either Carbon Dioxide or Nitrogen
Not enough information
Tags
NGSS.MS-PS1-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You are testing unknown gas B with a small flame test. You observe that when gas B is exposed to the flame the flame goes out. Using the provided chart, determine which gas is most likely gas B.
Oxygen
Methane
Carbon Dioxide
Either Carbon Dioxide or Nitrogen
Not enough information
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You are testing unknown gas C with a small flame test. You observe that when gas C is exposed to the flame the flame burns bright green. Using the provided chart, determine which gas is most likely gas C.
Oxygen
Methane
Carbon Dioxide
Either Carbon Dioxide or Nitrogen
Not enough information
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cherylanne mixes together Chemical A and Chemical B in a test tube, forming Chemical C. The mixture instantly turns cool to the touch. She then adds Chemical D, and the reaction becomes hot and explodes.
Chemicals A and B form an endothermic reaction, and chemicals C and D form an exothermic reaction.
Chemicals A and B form an exothermic reaction, and chemicals C and D form an endothermic reaction.
Chemicals A and C form an endothermic reaction, and chemicals B and D form an exothermic reaction.
Chemicals A and B form an exothermic reaction, and chemicals B and D form an endothermic reaction.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For a science project, Janet performs four experiments that are supposed to show a chemical reaction. She displays her results in a table. In the column titled "Chemical reaction?," which experiment’s data should be changed to "No”?
experiment 1
experiment 2
experiment 3
experiment 4
Tags
NGSS.MS-PS1-2
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