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 ID: 279793
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Slide1
Lab Safety
and
Equipment
in a
Science ClassroomSlide2
Lab Safety Contract
Contract stating that you agree to work and behave in a safe manner while doing labs in this classroom.Slide3
Lab Safety Rules
VERY
importantMust 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.Slide4
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.Slide5
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!!Slide6
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.Slide7
SAFETY SYMBOLS
…will appear when they must be observed.Slide8
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.Slide9
Equipment
Erlenmeyer Flask
-a container used for:Swirling liquidSimple 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.Slide10
Equipment
Ring Stand
-a support for an iron ring or a test tube clampRing Clamp-fastens to a ring stand as a support for apparatus
Wire Gauze
-spreads the heat of a flameSlide11
EquipmentSlide12
Equipment
Scoopula
-to transfer small solidsMortar and Pestle
-used to grind chemicals into powderSlide13
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.Slide14
Equipment
Indicator (pH) papers
-used to measure the pH of liquids; turns/stays pink in acids and blues in bases.Slide15
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.Slide16
Equipment
Test Tube Rack
-holds several test tubes in the upright positionTest Tube Clamp-fastens to a ring stand and holds a test tube.Slide17
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.Slide18
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 waterSlide19
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. Slide20
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.Slide21
Equipment
Triple Beam Balance
-an instrument used to measure mass.Spring Scale
-measures mass and force. Unit is
Newtons
.Slide22
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.Slide23
Equipment
Hot Plate
-used to heat objectsSlide24
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.Slide25