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Lab Safety and Equipment in a Science Classroom

Lab Safety and Equipment in a Science Classroom. Lab Safety Contract. Contract stating that you agree to work and behave in a safe manner while doing labs in this classroom. Lab Safety Rules . VERY important Must be followed at ALL times

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Lab Safety and Equipment in a Science Classroom

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  1. Lab Safety andEquipment in aScience Classroom

  2. Lab Safety Contract Contract stating that you agree to work and behave in a safe manner while doing labs in this classroom.

  3. Lab Safety Rules • VERY important • Must be followed at ALL times • Failure to follow these rules will result in you not being allowed to participate in the exercise and a failing grade for the assignment.

  4. Lab Safety Rules • Wear safety goggles at ALL times!!!! • Learn what to do in case of an accident, for example, getting an acid in your eyes. • Report any and all accidents IMMEDIATELY to your teacher. • Know where fire extinguisher is located and how to use it. • Work in a well-ventilated area. • Read directions for an experiment carefully two or more times.

  5. Lab Safety Rules • Use clean lab equipment…NEVER use dirty equipment. • Do not perform experiments until instructed to do so. • NEVER eat or drink in the lab. Do NOT taste any chemicals. • Do NOT smell chemicals directly, you are to waft the smell to your nose. • Clean your work area and materials before leaving the lab area. • ALWAYS wash your hands when you are finished…this should be the very last thing you do!!

  6. What NOT to do in the Lab… • Mix chemicals “for the fun of it.” • Taste, touch or smell any chemical. • Heat any chemical that you are not instructed to do so. • Heat a liquid in a closed container. • Tilt a test tube towards yourself or anyone else. • Perform any experiment that you do not have written instructions for. • Dump chemicals or broken glass into the sink or the trash can.

  7. SAFETY SYMBOLS…will appear when they must be observed.

  8. Equipment • Beaker-a container, like a cup, with a wide mouth. Used for mixing, measuring and boiling. • Beaker Tongs-used to pick up and hold a beaker.

  9. Equipment • Erlenmeyer Flask-a container used for: • Swirling liquid • Simple measuring, heating, storing of mixed liquids • Does not break due to heat or chemicals • Flask Tongs-used to pick up and hold an Erlenmeyer flask or crucible • Volumetric Flask-used to measure one specific volume; mostly used in mixing solutions.

  10. Equipment • Ring Stand-a support for an iron ring or a test tube clamp • Ring Clamp-fastens to a ring stand as a support for apparatus • Wire Gauze-spreads the heat of a flame

  11. Equipment

  12. Equipment • Scoopula-to transfer small solids • Mortar and Pestle-used to grind chemicals into powder

  13. Equipment • Graduated Cylinder-for accurate measurements of small volumes of liquids that cannot be done with beakers and flasks; used to measure volume by water displacement to calculate density.

  14. Equipment • Indicator (pH) papers-used to measure the pH of liquids; turns/stays pink in acids and blues in bases.

  15. Equipment • Test Tube- used to hold, mix, or heat small quantities of solid or liquid chemicals for experiments. • Test Tube Holder-used to hold one test tube • Test Tube Brush-to scrub/clean test tubes.

  16. Equipment • Test Tube Rack-holds several test tubes in the upright position • Test Tube Clamp-fastens to a ring stand and holds a test tube.

  17. Equipment • Evaporating Dish-a container for evaporating and heating small amounts of liquid • Watch Glass- clear glass with a concave shape that should never be used for heating. Can be used as a cover for an evaporating dish or beaker or to dissolve materials such as crystals and powders.

  18. Equipment • Goggles-to protect eyes when heating or using glassware or chemicals • Microwell Plate-to observe many, small reactions at one time • Wash Bottle-hold and dispense distilled water

  19. Equipment • Stirring Rod-stir combinations of materials; usually made of glass • Stoppers-used to seal test tubes and other types of glass to keep out airborne contaminants.

  20. Equipment • Funnel-holds filter paper and/or aids in pouring liquids from one container to another. • Filter Paper-used to separate liquids from insoluble liquids. The solid is trapped while the liquid pours through.

  21. Equipment • Triple Beam Balance-an instrument used to measure mass. • Spring Scale-measures mass and force. Unit is Newtons.

  22. Equipment • Crucible and Lid-used to heat chemicals, usually solids; can withstand very high temperatures. • Pipe Stem Triangle-supports crucibles, evaporating dishes or funnels on a ring support when heating to high temperatures.

  23. Equipment • Hot Plate-used to heat objects

  24. Equipment • Eyedropper-transfer small amount of liquid; usually made of glass and rubber. • Pipet-transfer small amounts of liquid; usually made of plastic and is disposable.

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