Presentation on theme: "Scientific Lab Equipment graduated cylinder (graduate) To measure volume of liquids accurately."— Presentation transcript:
Scientific Lab Equipment
graduated cylinder (graduate) To measure volume of liquids accurately
Metric Ruler To measure the lengths of solid objects accurately
thermometer To measure temperature accurately oCoC
magnifying glass (hand lens) To make objects appear larger than they are
Bunsen burner To heat substances (with a flame)
hot plate To heat substances using electricity, not a flame.
Lighter These strikers are used to light lab burners. The flints on strikers are expensive. Do not operate the striker repeatedly just to see the sparks!
ring stand with clamp and ring To hold containers away from a heat source (such as fire) during an experiment
Ringstands and their Components Ring Clamp Ring clamps connect to a ringstand, and provide a stable, elevated platform for a beaker to be heated. Will also hold a clay triangle and funnel during filtering.
Ringstands and their Components Wire Gauze Wire gauze sits on the iron ring to provide a place to stand a beaker. On older wire gauze, the white material was asbestos – currently it is a ceramic.
Crucible with lid: heat small samples
Crucible Triangle: Cradles crucible to secure over a flame
Crucible Tongs For handling hot crucibles; also used to pick up other hot objects - NOT to be used for picking up beakers!
test tube To hold liquids and chemicals during experiments (investigations)
test tube holder To hold test tubes over heat or away from your body
Disposable pipet To drop small amount of liquids
forceps To pick up small items that you should not touch
Erlenmeyer flask To hold liquids NOT used to measure accurately
beaker To hold, pour, or estimate liquids NOT used to measure substances accurately
Funnel To pour liquids from one container to another without spilling anything
stirring rod To mix chemicals and hot liquids together (like a spoon)
Stirring Rod The stirring rod is used to: a) manually stir solutions; b) assist in pouring liquids; and c) to transfer a single drop of a solution. Rubber policeman tip is used to remove precipitates. Stir with this end.
Spatula Spatulas are used to dispense solid chemicals from their containers. Chemicals should never be transferred with your bare hands.
tongs To pick up large objects that you should not touch (e.g., hot containers, flasks of acids, etc.)
safety goggles To protect eyes against burns or cuts
test tube brush To clean the insides of test tubes after investigations
test tube rack To hold test tubes during an investigation. (After cleaning, test tubes can be placed upside down to dry.)
Well Plate: small scale reactions
Broken Glass Box and Trash Can Broken Glass box to dispose of any broken glass, instead of the trash can. Trash Can to dispose of paper waste only!
Watch Glass A watch glass is used to hold a small amount of solid, such as the product of a reaction. Can also be used as a cover for an evaporating dish or beaker.
Evaporating Dish The evaporating dish is used for heating stable solid compounds and elements, as well as for evaporating nonvolatile solutions.
Weighing Boat Weighing boats are used to weigh solids that will be transferred to another vessel. Weighing boats are used to weigh solids that will be transferred to another vessel. We will also use squares of paper for this purpose – throw them away after using. We will also use squares of paper for this purpose – throw them away after using. Never put chemicals directly on the balance scale – it leaves residue and can harm the balance Never put chemicals directly on the balance scale – it leaves residue and can harm the balance
Wash Bottle A wash bottle has a spout that delivers a water stream to a specific area. Distilled water is the only liquid that should be used in a wash bottle NEVER squirt water at another student!!! Distilled Water
Eyewash Station Push this handle to turn on the water – it will stay on until you pull it to turn off. Flush your eyes for minutes! The Eyewash is located in the back of the lab in my chemical closed and under the Safety Shower. You will need to summons me for assistance at the Eyewash Station.
Safety Shower Lots of water will come pouring out here to rinse chemicals spilled on you. This is the handle to pull to activate the safety shower.
Eyewash Bottle and Fire Extinguisher Fire Extinguishers are found behind the door, at the door to my chemical room and at the back left corner of the lab stations.
Now that you’ve learned the names and uses of these pieces of lab equipment, you are almost ready to work in the laboratory! Lab Equipment- Review Uses.ppt