Laboratory SafetyLaboratory Safety

The BasicsThe Basics

Always think about what you are doing.Always think about what you are doing.Follow directions. Follow directions. Ask questions when you don’t understand Ask questions when you don’t understand

something. Don’t assume.something. Don’t assume.Keep food, drink, and gum out of the lab.Keep food, drink, and gum out of the lab.Keep areas clean and neat.Keep areas clean and neat.Know the safety equipment.Know the safety equipment.

The Proper AttireThe Proper Attire

Wear long pants and closed-toe shoes.Wear long pants and closed-toe shoes.Wear goggles.Wear goggles.Tie back long hair.Tie back long hair.

Safety Shower and Eye WashSafety Shower and Eye Wash

Only teachers should operate the safety Only teachers should operate the safety shower and eye wash station.shower and eye wash station.

Always tell me if there is any injury, no Always tell me if there is any injury, no matter how minor.matter how minor.

Use the safety shower and eye wash Use the safety shower and eye wash station for at least 20 minutes for chemical station for at least 20 minutes for chemical splashes and spills.splashes and spills.

ChemicalsChemicals

Handle all chemicals with care.Handle all chemicals with care.Never taste chemicals.Never taste chemicals.Check labels.Check labels.Do not return unused chemicals.Do not return unused chemicals.Transport chemicals carefully and only Transport chemicals carefully and only

when necessary.when necessary.

GlasswareGlassware

If your glassware breaks, let me know and If your glassware breaks, let me know and I will clean it up.I will clean it up.

Check glassware for chips and cracks Check glassware for chips and cracks before using it.before using it.

Do not immediately cool glassware that Do not immediately cool glassware that has been heated.has been heated.

HeatingHeating

Make sure to light burners when the gas is Make sure to light burners when the gas is on.on.

Do not leave lit burners unattended.Do not leave lit burners unattended.Be careful with long hair and loose Be careful with long hair and loose

clothing around burners.clothing around burners.Use tongs to remove heated glassware.Use tongs to remove heated glassware.

ScenarioScenario

Greta goes to the fume hood to get the Greta goes to the fume hood to get the solutions for the lab. She picks up an solutions for the lab. She picks up an unlabeled bottle and pours 10 ml of it into unlabeled bottle and pours 10 ml of it into a beaker. She then adds 10 ml of a a beaker. She then adds 10 ml of a labeled solution. She walks back to her lab labeled solution. She walks back to her lab station, puts on her goggles, and begins station, puts on her goggles, and begins heating up her solution. After she finishes heating up her solution. After she finishes heating the solution, she places the heating the solution, she places the beaker directly on the cold lab bench.beaker directly on the cold lab bench.

AssignmentAssignment

In groups of two to three, write four In groups of two to three, write four laboratory scenarios. laboratory scenarios.

Each lab scenario should include four safe Each lab scenario should include four safe practices and four unsafe practices. practices and four unsafe practices. Please vary them.Please vary them.

Write five questions, short answer or Write five questions, short answer or multiple choice, about laboratory safety.multiple choice, about laboratory safety.