Lab Safety Review

If a fire erupts, immediately

• notify the teacher

• run for the fire extinguisher

• throw water on the fire

• pull the fire alarm

Answer explanation

Always tell the teacher first. It might not be a regular fire and we want to prevent any injury to the students. Then, pull the fire alarm when the teacher tells you to.

Approved eye protection devices (such as goggle) are worn in the laboratory

• to avoid eye strain

• to improve your vision

• only if you do not have corrective glasses

• whenever the teacher instructs you to

Answer explanation

The teacher may instruct you to wear them during a demonstration as well.

What must you do to long hair in the laboratory?

• Burn it

• Leave as is

• Tied back

• Cut it very short during class

Answer explanation

You may in fact get a short hair cut, but not during class. The proper way to care for hair is simply tying it back.

What is the first thing you should do if you have been injured (cut, burned, etc.) in the lab?

• call the ambulance

• see a doctor after school

• tell the teacher at once

• go to the school nurse

Answer explanation

All of these things are possible in the case of an injury. However, always tell the teacher first; then afterwards you can do any of the other three if necessary.

What should you do with a chemical 'waste' that looks like water?

• leave it at your lab station for the next class

• drink it

• dump it down the sink

• dispose of it according to your teacher's directions

Answer explanation

If it is a 'waste', dispose of it according to your teacher's directions. do not immediately pour it down in the sink, even if it looks like water. Additionally if it is a 'waste' don't leave it for the next class, but instead dispose of it properly.

Tags

NGSS.MS-ESS3-3

What should you do if you do not understand a direction or a part of the laboratory procedure?

• figure it out as you do the lab

• try several methods until something works

• ask the teacher before proceeding

• skip it and go on to the next part

Answer explanation

If you are unsure, ask the teacher.

Which of the following should NOT be worn during a laboratory experiment?

• long pants

• dangling jelwery

• close-toed shoes

• all of the above

Answer explanation

DO NOT wear dangling jewelry. It can easily get caught in something you are working with. Please DO wear long pants and close-toed shoes.

Horseplay, practical jokes, or pranks in the science laboratory

• always against the rules

• not dangerous

• okay if you are working alone

• fine as long as it doesn't hurt anyone

Answer explanation

Horseplay, practical jokes, and pranks are ALWAYS against the rules.

Students are allowed to take animals of the room without permission from the teacher?

• True

• False

Answer explanation

Do not take animals out of the room, especially without the teacher's permission. Also, make sure to handle animals with care and respect and not tease or handle them roughly.

When you are done working in the lab with chemicals, biological specimens or other lab substances you should always

• wash your hands thoroughly with soap and water

• treat your hands with sanitizer and skin lotion

• simply wipe you hands on a towel

• sipe your hands on your clothes

Answer explanation

Sanitizer does not remove stuff from your hands, but rather just kills bacteria and germs. To completely remove all substances from your hands you must wash it away with soap and water.