Science/Lab Safety Atwater High School Agriculture Department

Question of the Day How many FFA activates are required per quarter? Students will be able to identify and explain critical lab safety symbols. Objective

Ouch! DUKEDUKE Ray Joe 1.List 3 unsafe activities shown in the illustration and explain why each is unsafe. 2.What should Bob do after the accident? 3.What should have Sue have done to avoid an accident? 4.What are three things shown in the lab that should not be there? 5.Between Luke and Duke who is following the rules?

Lab and Field Safety Take two minutes to read over the top two paragraphs on the first page of the safety packet. Accidents can be avoided ◦ Major causes of lab accidents are:  Carelessness  Lack of attention  Inappropriate behavior

Safety Guidelines General ◦ Always get your teacher’s permission before attempting any laboratory or field investigation. ◦ Read procedures carefully!! ◦ If an accident does occur, inform your teacher immediately.

Safety Equipment Know the location of the nearest fire alarm and other safety equipment. Neatness Keep work area free of all unnecessary books and papers. Tie back long hair and secure loose sleeves or other loose articles of clothing. Never eat, drink or apply cosmetics in a lab setting.

Cleanup Clean up your work area Put away all equipment and supplies Dispose of all chemicals as directed by your teacher. Make sure water, gas, burners, and electric hot plates are turned off. Wash your hands with soap and water after working in a laboratory situation.

General Conduct Don’t touch face, mouth or eyes when working with plants, rocks, soil or chemicals. Don’t look directly into the sun Do wear safety goggles to protect eyes and face from danger.

Chemicals Wear safety goggles Label bottles and test tubes accurately Immediately flush chemical-exposed eyes, skin, or clothing with large amounts of water. Never ◦ taste or inhale chemicals ◦ Transfer chemicals with a mouth pipet ◦ Pour water into acid ◦ Stir chemicals with fingers

Electricity Keep work area dry Be sure all electrical equipment is grounded Never touch electrical equipment with wet hands Never overload circuits

Gas Do not inhale fumes directly Do not breathe pure gases such as: ◦ Hydrogen ◦ Argon ◦ Helium ◦ Nitrogen ◦ High concentrations of carbon dioxide

Glassware Wrap glass tubing in a towel when inserting or removing it from a rubber stopper. Sweep up broken glassware immediately and dispose properly. Pipettes and glass stirring rods should be dried by toweling.

Fire Wear safety goggles Tie back long hair Turn off all hot plates, burners and other flames when not in use. Not to use an open flames around volatile liquids, such as ether and alcohol. Do not reach across an open flame. Always heat rocks in a water bath, never over a flame.

Jig-Saw Groups Each Group will get 5 – 6 rules. Please read the rules and create a small poster that simplifies those rules.

EXAMPLE Rules Dress Code: Always wear safety glasses and an apron when working with chemicals Tie back long hair Don’t wear loose clothing or open-toed shoes

You have 15 minutes. You’re being timed GO!

Tables & Rule Numbers Table 1: 5 – 10Table 8: Table 2: 11 – 14Table 9: Table 3: Table 4: Table 5: Table 6: Table 7: 40-42

Review Glassware Clothing Caustic Electrical Chemical Fire Eye Explosion Gas Hand Heating Safety Proper Waste water