Laboratory Safety Practices

What should you do with long hair when working in a lab?

• Let it hang freely

• Tie it up

• Cover it with a hat

• Cut it short before entering

Which type of footwear is NOT safe to wear in a lab?

• Closed-toe shoes

• Boots

• Sneakers

• Sandals

On a hazardous materials label, what does a '4' in the blue section mean?

• The material is very flammable

• The material is very reactive

• Exposure to the material can be deadly

• The material is not dangerous

What is the main purpose of a fume hood in a lab?

• To keep the lab warm

• To suck out bad air and fumes

• To store chemicals safely

• To provide extra light for experiments

Which of these can be a long-term effect of inhaling dangerous chemicals?

• Happiness

• Headache

• Increased energy

• Better eyesight

What is the safest way to smell a chemical in the lab?

• Stick your face directly into the container.

• Taste a small amount of the chemical.

• Waft the smell towards your nose with your hand.

• Pipette the chemical by mouth.

When pouring a liquid from one container to another, what is the best way to prevent spills caused by surface tension?

• Pour very slowly and carefully.

• Pour quickly and with confidence.

• Use a very small amount of liquid.

• Shake the container while pouring.

What is the most common cause of cuts and punctures in a lab?

• Spilling liquids on the floor.

• Cleaning up broken glass.

• Not wearing safety goggles.

• Forgetting to wash hands.