13 Interest Grabber Answers Section 2.3A. No flames, sparks, or exposed sources of heat should be present during an experiment.B. Waft fumes to you to avoid these from burning your lung tissue.C. Avoid getting corrosive chemicals on skin or clothing, or in the eyes.D. Tie back long hair and loose clothing, and put on safety goggles before using a burner.Interest Grabber Answers
14 Wear Protective Clothing GogglesLab coats or ApronsGloves as needed
15 Lab RulesFirst: Read all Directions for an experiment and follow directions.Never perform unauthorized or unsupervised labs or handle equipment without permission.Ask questions before you do something
16 Lab Rules continuedWhen you design your own lab, make sure your lab procedure has been approved by your teacher.NEVER EAT, DRINK or Bring FOOD or water into the laboratory area.
17 Lab Rules continued Do not chew gum during a lab! REPORT ALL ACCIDENTS TO TEACHER IMMEDIATELYReport any fire to teacher and know where the fire extinguisher and fire blanket are located
18 Dress Code RulesAlways wear goggles OVER EYES ( there will be a deduction in your Lab Participation grade if not worn.) 2nd warning you will sit out.Wear protective clothing if necessary
19 Dress Rules Cont. Tie back hair and loose clothing Remove dangling jewelry that could contact chemicals or cause hazards.
20 Handling Glassware Handle all glassware with care Report all breakages, even chipped glassware to teacher—DO NOT TOUCH BROKEN GLASS!!Make sure glassware is not near edges of the work table
21 Glassware Cont.Never heat glassware that is not fully dry or heat resistant (pyrex)Do not touch any glassware that has been on the hot plate with your unprotected hands.Use tongs or heat resistant gloves.NEVER drink from Lab glassware
22 Heating and Fire Safety Never reach over a flame or hot plateNEVER touch hot object with your bare handsTie back long hair, loose clothing and put on safety goggles before using a burner.
23 Heating and Fire Safety Cont. Never heat chemicals without your teacher’s permissionWhen heating a test tube point it away from peopleHeat the test tube at a 45◦ angle—Not straight upNever Heat a closed container
24 Electrical SafetyDo not use electrical equipment near water or if your hands are wetUse only three prong socketsDisconnect equipment not in useDo Not Use damaged equipment or frayed cords
25 Chemical SafetyDo not let corrosive or poisonous chemicals get on your skin or clothing or in your eyesNever test for an odor by sticking your nose directly into or over the odor—Waft THE ODER TO YOU!!
26 Chemical safety Cont. NEVER MIX CHEMCIALS TOGETHER FOR FUN!! Never touch, taste or smell a chemical that you do not know, for certain, that is not dangerous
27 Chemical safety Cont.Avoid spilling chemicals—tell teacher if you spill anything except water.When using strong acids or bases, ALWAYS pour these into the water not vice versa.DO NOT pour water into the acid/base
28 End of Experiment Rules Follow your teacher’s directions as to disposal of chemicals.DO NOT POUR ANYTHING DOWN THE DRAIN without permission
29 End of Experiment Rules Your work area must be left clean and ready for the next groupWhen the area is clean and dry, you may get with your lab group and complete your lab report.
30 End of Experiment Rules WASH YOUR HANDS AT THE END OF THE EXPERIMENT.Throw all paper towels in trash.There is to be no trash in the sinks or your group will loose points off the lab report.
31 End of Experiment Rules WE WILL NOT DISMISS WITHOUT THE ALL LAB AREAS CLEAN AND ALL MATERIALS PUT AWAY!!
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