AnswersMadison 2017 Phy Sci A-35 SSSafety in Science

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.
5

Gabriella got a burn on her arm from a chemical spill and rinsed the area thoroughly with water. Which piece of safety equipment would she use next?

A
an extinguisher
B
a fire blanket
C
a first-aid kit
D
gloves
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.
11

Cora had a chemical splash into her eyes. She immediately told her teacher and went to the eyewash station. She then proceeded to wash her eyes out until they no longer hurt, which took about ten minutes. She then returned to her station, cleaned up any chemical spills according to directions, and started her project over.Which best describes her error?

A
She should not have started over after the chemical spill.
B
Her teacher should have cleaned the chemical spill.
C
She should have washed her eyes for at least fifteen minutes.
D
She should have used the safety shower.
12

Xander lit his Bunsen burner. He then reached over the burner to get his chemicals. He performed the lab, but at the end, he dropped a test tube on the ground. He immediately told his teacher, who cleaned it up so he could finish the lab. Once finished, he then cleaned up his area.Which best describes his error?

A
He should not reach over an open flame.
B
He should clean up the glass before telling the teacher.
C
He should stop the lab completely after the accident.
D
He should leave the area as is for the next student.

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