Scientific method & Safety

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Scientific method & Safety

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Question 16 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
A substance that can cause death
A
vapor
B
fatal
C
sodium bicarbonate
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Question 17 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
A variable that is changed by the scientist or changes naturally. It is not effected by another variable.
A
independent variable
B
dependent variable
C
control
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Question 18 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
This is identified and is the 1st step of the scientific method.
A
question/problem
B
experiment
C
hypothesis
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Question 19 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
How should you smell chemicals
A
never
B
wafting with your hand
C
sniffing over the container
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Question 20 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
The part of the experiment that stays the same
A
dependent variable
B
independent variable
C
constant
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