Scientific  Method  Lab  Safety
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Scientific Method Lab Safety






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Scientific  Method  Lab  Safety Scientific Method Lab Safety Presentation Transcript

  • 6 Steps Scientific Method
    • Pose a Question
      • What do I want to know?
    • Make a Hypothesis
      • An educated guess
    • Design an Experiment
      • Have a variable and a control
    • 4. Collect and Interpret Data
    • Keep data organized
      • Graph results to help interpret
    • 5. Draw a Conclusion
      • Was the hypothesis correct?
    • 6. Communicate the Results
      • Spoken or Written
    • Scientific Theory
      • Well-tested explanation for “something” happening but not sure if this “something” will always happen
        • Examples: Creation, Evolution
    • Scientific Law
      • Expected to happen every time with the same variables (conditions)
        • Examples: Gravity, Conservation of Mass
  • Lab Safety
    • General Precautions:
      • Follow teacher’s/lab instructions
      • Never perform activities without approval and supervision of your teacher
      • Do not engage in horseplay
      • Never eat or drink in the laboratory
      • Keep work areas clean and uncluttered
    Lab Safety
    • Dress Code
      • Wear safety goggles when working with chemicals, glassware, heat sources or any substances that might get into your eyes
      • Wear lab apron when working with corrosive chemicals or substances that stain
      • Wear disposable plastic gloves when working with organisms or harmful chemicals
      • Tie back long hair
      • Remove or tie back clothing or jewelry that hangs down, roll up sleeves long sleeves
    Lab Safety
  • Lab Safety
    • First Aid:
      • Report all accidents, injuries or fires immediately to Mrs. H
      • Know the location of the first aid kit, fire extinguisher and eye wash station
      • Call the office at ext. 200 (Mrs. Launer), in case of an emergency
    • Heating and Fire Safety
      • Keep all combustible materials away from flames
      • Place the mouth of the test tube away from everyone when heating
      • Never heat a liquid in a closed container
      • Use an oven mitt to pick up a heated container
    Lab Safety
    • Chemical Safety
      • Never put you face near the mouth of a container of chemical
      • Never touch, taste or smell a chemical unless approved by Mrs. H
      • Use only those chemicals needed in the activity
      • Keep all containers closed when chemicals are not being used
      • Dispose of chemicals as instructed by teacher
      • Never pour water into an acid
    Lab Safety
    • Glassware Safety
      • If glassware is broken or chipped, tell Mrs. H immediately
      • Never handle broken or chipped glass with your bare hands
      • Never force glass tubing or thermometers into a rubber stopper or rubber tubing
    Lab Safety
    • Sharp Instruments
      • Handle sharp instruments with extreme care
      • Never cut material toward yourself, cut away from yourself
    Lab Safety
    • Animal and Plant Safety
      • Never perform experiments that cause pain, discomfort, or harm to animals
      • If you are allergic to certain plants, molds or animals, let Mrs. H know
      • Wash your hands after any activity involving animals, animal parts, plants, plant parts or soil
      • Avoid poisonous plants and fungi as well as plant with thorns
    Lab Safety
    • End-of-Experiment Rules
      • Unplug all electrical equipment
      • Clean up your work area
      • Dispose of waste materials as instructed by Mrs. H
      • Wash your hands after every experiment
    Lab Safety
  • Safety Symbols
    • Safety Goggles
    • Lab Apron
    • Breakage
    • Heat-Resistant Gloves
    • Plastic Gloves
    • Heating
    • Flames
    • No Flames
    • Corrosive Chemical
    • Poison
    • Fumes
    • Sharp Object
    • Animal Safety
    • Plant Safety
    • Electric Shock
    • Physical Safety
    • Disposal
    • Hand Washing
    • General Safety Awareness