Lab Safety Quiz

Which of the following statements correctly represents the importance of wearing protective goggles in a laboratory?

• Goggles protect your eyes from sunlight and make you look more professional.
• Goggles allow you to see through walls and objects, enhancing your scientific skills.
• Goggles provide a physical barrier that shields your eyes from chemical splashes, fumes, and other potential hazards.
• Goggles are only necessary when working with sharp objects, but not when handling chemicals or other substances.

The primary purpose of a fume hood in a laboratory is to:

• Provide a space for storing chemicals and equipment safely.
• Ensure proper ventilation and minimize exposure to harmful fumes and gases.
• Clean and sterilize lab equipment after use.
• Maintain the temperature and humidity levels in the laboratory

Which of the following is an appropriate attire for a laboratory setting?

• Sandals and shorts
• Long-sleeved shirt and closed-toe shoes
• Loose-fitting clothing and open-toe shoes
• Sleeveless shirts and flip-flops

What should you do if you accidentally spill a small amount of a chemical on your skin during a laboratory experiment?

• Quickly wipe it off with a paper towel
• Rinse the affected area with cool running water for at least 15 minutes
• Cover the spill with a lab coat and continue with the experiment
• Ignore the spill and continue working

Lab safety rule 5: Experiments must be personally monitored at all times. You will be assigned a laboratory station at which to work. Do not wander around the room, distract other students, or interfere with the laboratory experiments of others. Which of the following actions is in line with the lab safety rule mentioned above?

• Seeking permission from the teacher to observe another student's experiment during free time
• Asking a nearby student for assistance in understanding the experiment
• Staying at your assigned laboratory station and focusing solely on your own experiment
• Moving around the room to get a better view of other students' experiments

Why should you never return unused chemicals to their original containers?

• It can waste the chemicals and lead to unnecessary expenses.
• It can cause contamination and lead to incorrect results in future investigations
• It is time-consuming and disrupts the flow of the experiment.
• It can be difficult to find the original containers and may lead to confusion.

Tags

NGSS.HS-ETS1-3

What is the correct method for smelling fumes during an investigation?

• Lean over the container and take a deep breath directly from it.
• Touch the container with your nose to catch the scent of the fumes.
• Gently wave your hand over the container to bring the fumes to you.
• Use a straw to create suction and inhale the fumes directly from the container.

Which of the following statements is true regarding transferring chemicals in the laboratory?

• It is important to transfer chemicals quickly to save time.
• Chemicals should be carried loosely to prevent spills.
• It is crucial to hold chemicals securely and walk carefully.
• Any spills or accidents can be ignored if they are small.

Which of the following best describes the importance of examining glassware before each use?

• It is not necessary to check glassware before using it.
• Glassware should only be checked for cracks, not chips.
• It is important to examine glassware to ensure it is safe to use.
• Chipped or cracked glassware can still be used if handled carefully.

Which of the following statements accurately describes the visual appearance of hot and cold glass?

• Hot glass appears red, while cold glass remains transparent.
• Hot glass appears transparent, while cold glass appears frosty.
• Both hot and cold glass have the same visual appearance.
• Hot glass appears frosted, while cold glass remains transparent.