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Ms. Galan Merced High School Agriculture Department Laboratory Safety Ag. Biology.

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Presentation on theme: "Ms. Galan Merced High School Agriculture Department Laboratory Safety Ag. Biology."— Presentation transcript:

1 Ms. Galan Merced High School Agriculture Department Laboratory Safety Ag. Biology


3 ..\..\Ag. Earth Science MHS\2-Safety\simpson safety.avi..\..\Ag. Earth Science MHS\2-Safety\simpson safety.avi

4  After this lesson students will be able to: ◦ Explain why preparation is important when carrying out scientific investigations in the lab in the field. ◦ Describe what you should do if an accident occurs. ◦ Identify safety icons and explain their meaning.

5  Good preparation helps you stay safe when doing science activities.

6  Begin the day before  Familiarize yourself with the directions/procedures.  If anything is unclear, ask questions!

7  Follow instructions exactly.  Never try anything on your own without asking Ms. Galan first.  Keep work area clean and organized.  Don’t rush! Take your time!

8  Clean-up your work area.  Turn off and unplug any equipment that’s not being used.  Throw away waste in it’s proper receptacle. ◦ Sharp objects do NOT go into the regular trash can!  Wash your hands thoroughly!

9  Follow the specific instructions provided.  Do not perform any investigations without Ms. Galan!

10  Take care not to spill material in the lab.  Clean up spills immediately.  NEVER eat, drink, or bring food into lab.

11  Immediately report all accidents to Ms. Galan, no matter how small.  Report any fire at once.

12  Know where emergency equipment is located. ◦ Fire Extinguisher ◦ First Aid Kit ◦ Nearest Telephone ◦ Nearest Exit

13  Wear safety goggles when handling chemicals, burners, or any substance that may get in your eyes.  Wear an apron whenever you work with heat or chemicals.

14  Tie back long hair to keep away from flames.  Remove any clothing or jewelry that can hang down into chemicals, flames, and moving parts.

15  Never use heat source such as a candle or burner without safety glasses.  Never heat a chemical you are not instructed to heat.  Maintain a clean work area and keep items away from flame.

16  Never reach across a flame or hot surface.  Make sure you know how to operate a hot plate.  Never leave machines unattended.

17  When heating test tubes or bottles, never point towards yourself or others.  Never heat a closed container. ◦ Hot air, vapors, or gases may cause it to explode.

18  Never pick up a container that has been heated without testing it. ◦ Hold the back of your hand near the container. If you can feel the heat, don’t touch it!  Use clamps, tongs, or heat-resistant gloves to handle hot materials.

19  Never mix chemicals, without permission from Ms. Galan. ◦ You may produce a dangerous substance or explosion.  Never touch, taste, or smell a chemical that you are unsure if it’s harmless or not.

20  Never smell chemicals directly. Wave hand over opening of container to waft fumes toward nose.  Keep all containers closed when not in use.  Dispose of chemicals properly.

21  Be careful when working with acids and bases. Pour such chemicals from one container to another over the sink.  When diluting an acid, pour the ACID into WATER. NEVER pour WATER into an ACID. ◦ The acid may splash on you!

22  If acids or bases get on skin or clothes, rinse with water immediately. Notify Ms. Galan of any spills!

23  Never heat glassware that isn’t dry.  Always check glassware to see if its hot before picking it up.

24  Never use broken or chipped glassware. ◦ If you notice or accidently break glassware, notify Ms. Galan and deposit in proper container.  Never eat or drink from lab glassware.  Clean glassware before putting it away.

25  No experiments that cause pain, discomfort, or harm to animals should be done in the classroom or at home.  Follow instructions completely. Special handling is required when animal is scared, pregnant, feeding, or with its young.  Wash hands well!!!

26 Draw each symbol and write the description on the Lab Safety Vocab Square.

27  Follow specific instructions provided  Don’t perform investigation without instructor.

28  Always wear safety goggles to protect your eyes from chemicals, flames, heating, and/or glassware.

29  Wear a lab apron to protect skin and clothing from injury.  Wear disposable gloves to protect yourself from chemicals, plants, or animals that could be harmful.  Never touch your face with gloves on! Plastic Gloves Symbol

30  Use clamps or tongs to pick up hot glassware. Never touch with bare hands.  Tie back loose hair and clothing.  Wear safety goggles.  Keep all combustible materials away from flames.

31  Use an oven mitt when handling hot objects.  Never touch hot items with bare hand.

32  Indicates presence of acid or harmful chemical.  Avoid getting acid and other chemicals on your skin, clothing, or eyes.  Don’t inhale vapors.  Wash your hands immediately after lab. Corrosive Chemical Symbol

33 Poison  Don’t let poisonous chemicals touch your skin.  NEVER inhale vapors.  Wash hands immediately! Fumes  Poisonous or unpleasant vapors produced.  Work in well ventilated area.  Test odor only when instructed by Ms. Galan.

34  Handle breakables with care ◦ Glassware: Beakers, test tubes, etc.  Don’t touch broken glassware. ◦ Notify Ms. Galan IMMEDIATELY!

35  Handle scalpels and other sharp objects with care.  ALWAYS cut AWAY from you.  Notify Ms. Galan immediately if you cut yourself, no matter how SMALL!

36 Animal Safety  Treat live or preserved animals with care to avoid harming the animal or yourself.  Wash hands after lab.  Wear gloves when handling or dissecting animals.

37  If you are allergic to certain plants, tell Ms. Galan immediately.  Avoid touching harmful plants with bare hands.  Wash hands!

38  Never use equipment around water or when hands are wet.  Untangle cords that could trip someone.  Unplug equipment when not in use. Electrical Shock Physical Safety  Be cautious of your surroundings to avoid injury.

39  Dispose of chemicals and other materials into their proper waste basket. Disposal Hand Washing  Wash hands well after EVERY lab activity.  Use soap and warm water. Rinse well!


41  Choose a safety symbol  Create a visual safety poster warning others of possible danger for your safety symbol.  Include the following information: ◦ Safety Symbol Title ◦ Safety Symbol ◦ Safety Procedure Description ◦ Picture showing good/bad science procedures

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