L1 Video #1 "Lab Safety"

What is a recommended safety practice for long hair in a lab?

• Tie it back to prevent interference or hazards.

• Let it hang freely for comfort.

• Cover it with a lab coat.

• Use hairspray to keep it in place.

What is the correct way to handle broken glassware in a lab?

• Pick up large pieces carefully with gloved hands.

• Sweep it up with a broom and dustpan and dispose of it in a designated broken glass container.

• Throw it in the regular trash bin.

• Leave it for the instructor to clean up.

What is strictly prohibited when working with chemicals in a lab?

• Tasting or smelling them directly.

• Diluting them with water.

• Storing them in labeled containers.

• Using them under a fume hood.

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When heating a test tube, what is a crucial safety precaution to prevent injury?

• Point the test tube towards yourself to observe the reaction closely.

• Use bare hands to hold the test tube for better control.

• Ensure the test tube is pointed away from yourself and others.

• Heat the test tube rapidly to speed up the reaction.

What is the proper way to carry a microscope?

• Hold it by the eyepiece with one hand.

• Carry it with two hands, one under the base and one on the arm.

• Drag it across the lab bench to its new location.

• Carry it by the stage with one hand.