Introduction to the Science Laboratory Introduction to Science apparatus Lab Safety The Science Laboratory.
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Introduction to the Science Laboratory
Introduction to Science apparatus
Lab Safety
The Science Laboratory
EVERYONE SHOULD
Identify key lab equipment.
Start to think about the importance of lab safety
Learning Objectives
The place where a scientist works is called a laboratory.
As students, you will carry out scientific investigations or experiments during science lessons in science laboratories
The Science Laboratory
We need to use apparatus to carry out our experiments.
The following slides show some common laboratory apparatus and their uses.
Scientific Apparatus
Test Tubes 13 x 100 mm test tubes
10 x 75 mm test tubes
Ignitiontube
Test tubes and
boiling tubes
Test Tube Holder
A test tube holder is useful for holding a test tube which is too hot to handle.
Test Tube BrushesTest tube brushes are used to clean test tubes and measuring cylinders.
Forcing a large brush into a small test tube will often break the tube.
Test Tube Racks
Test tube racks are for holding and organizing test tubes on the laboratory counter. Plastic racks may melt in contact with very hot test tubes.
Beaker
Beakers hold solids or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated.
Beaker
Erlenmeyer Flask (Conical flask)
Erlenmeyer flasks (conical flasks) hold solids or liquids that may release gases during a reaction or that are likely to splatter if stirred or heated.
Conical flask
Measuring Cylinder
A measuring cylinder is used to measure volumes of liquids.
Measuring cylinder
Rubber Stoppers
Rubber stoppers are used to close containers to avoid spillage or contamination.
Containers should never be heated when there is a stopper in place.
Watch Glass
A watch glass is used to hold a small amount of solid, such as the product of a reaction.
Glass Stir Rod
A glass rod is used to manually stir solutions. It can also be used to transfer a single drop of a solution.
Forceps
Forceps (or tweezers) are used to pick up small objects.
Bunsen burner
Funnel
A funnel is used to aid in the transfer of liquid from one vessel to another.
Filter paper and funnel
Pipettes
A pipette measures and delivers exact volumes of liquids.
Wash Bottle
A wash bottle has a spout that delivers a wash solution to a specific area. Distilled water is the only liquid that should be used in a wash bottle.
Bunsen Burner
Bunsen burners are used for the heating of nonvolatile liquids and solids.
Evaporating Dish
The evaporating dish is used for the heating of stable solid compounds and elements.
Crucible
Crucibles are used for heating certain solids, particularly metals, to very high temperatures.
Clay Triangle
The clay triangle is used as a support for porcelain crucibles when being heated over a Bunsen burner.
Universal clamp stand
Clamp stands are a safe and convenient way to perform reactions that require heating using a Bunsen burner.
Clamp
Utility clamps are used to secure test tubes, distillation columns, and burettes to the universal clamp stand.
Tripod and Wire gauze
Wire gauze sits on the tripod to provide a place to stand a beaker.
On older wire gauze, the white material is asbestos!
Hot Plate A hot plate is used to heat solids and liquids slowly, under safer
conditions than a Bunsen burner.
Electronic Mass Balance
Accurately measures masses of solids up to 0.01 grams
Cleaning BrushesCleans specific glassware Test tube brush Beaker brush Flask brush
Electronic Thermometer
Measures temperatures to ± 0.1 degree Celsius
Drawing and labelling more complicated
diagrams
Fully
labelled
Filtering – note lines ready for
labels
Yet more diagrams
Evaporating
STARTER ON SAFETY
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