Safety in Science Answers

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Which would be a common-sense practice in a lab environment?

A
keeping quiet about accidents
B
washing hands before the lab
C
taking a water bottle to drink
D
scratching one’s face during the lab
2
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Fredrick is doing a lab on pH. He uses many household items to determine the pH of his items. Which of his actions best describes inappropriate lab safety?

A
He changes into closed-toed shoes before lab starts.
B
He doesn’t wear goggles because he is using household chemicals.
C
He asks his teacher if he can mix high- and low-pH solutions before discarding them.
D
He leaves his workstation to identify all of the safety equipment in the lab.
4

Which scenario shows poor laboratory safety?

A
Nancy wears her safety goggles over her glasses in lab.
B
Justine notices a chip at the top of the beaker, considers using it, but then asks her teacher if she should use it.
C
Sanjeet brought a change of shoes into lab because he was wearing sandals.
D
Wyatt has low blood sugar, so he brings a granola bar to eat in lab so that he doesn’t have an incident during lab.
7

Ben placed four different solutions in beakers. He forgot to label the beakers. Which describes what he should do to ensure proper laboratory safety?

A
He should smell each of the solutions.
B
He should ask his teacher to identify them by taste.
C
He should tell the teacher and discard them in the proper container.
D
He should mix them together to form one solution to discard.
8

Which is an example of proper laboratory clothing?

A
jewelry
B
oversized sweatshirts
C
goggles
D
sandals
9

Which would aid a student in preparedness for a lab?

A
using a fire extinguisher if there is a fire
B
reading the lab manual before class
C
telling the teacher about a chemical spill
D
cleaning up after the lab
10

Which best describes proper disposal technique?

A
A bin should be labeled “chemical wastes and hazardous waste.”
B
A bin should be labeled “chemical wastes and broken glass.”
C
Students should know proper disposal of the chemicals they use.
D
Students can dispose of all chemicals in the sink.

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