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Lesson 5 Lab equipment
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Starter What is this and what do you think its used for?
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Your teacher has put equipment around the room. Can you:- Describe it Identify what it might be used for Record in your booklet
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Lab Equipment
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Beaker Beakers hold solids or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated.
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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.
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Round bottom Flask Rarely used in first year chemistry, it is used for the mixing of chemicals. Narrow neck prevents splash exposure.
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Measuring Cylinder A graduated cylinder is used to measure volumes of liquids.
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Test Tubes 13 x 100 mm test tubes 10 x 75 mm test tubes Ignitiontube
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Test Tube Holder A test tube holder is useful for holding a test tube which is too hot to handle.
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Test Tube Brushes Test tube brushes are used to clean test tubes and graduated cylinders. Forcing a large brush into a small test tube will often break the tube.
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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.
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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.
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Well Plates Well plates are used when we want to perform many small scale reactions at one time. We will use these many times during the year.
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Watch Glass A watch glass is used to hold a small amount of solid, such as the product of a reaction.
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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.
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Litmus Paper Red litmus paper is used to identify bases. Blue litmus paper is used to identify acids.
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Forceps Forceps (or tweezers) are used to pick up small objects.
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Funnel A funnel is used to aid in the transfer of liquid from one vessel to another.
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Pipettes A pipette measures and delivers exact volumes of liquids.
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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.
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Weighing Tray Weighing boats are used to weigh solids that will be transferred to another vessel.
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Spatulas Spatulas are used to dispense solid chemicals from their containers. Chemicals should never be transferred with your bare hands.
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Beaker Tongs Beaker tongs are used to move beakers containing hot liquids
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Bunsen Burner Bunsen burners are used for the heating of nonvolatile liquids and solids.
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Evaporating Dish The evaporating dish is used for the heating of stable solid compounds and elements.
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Crucible Crucibles are used for heating certain solids, particularly metals, to very high temperatures.
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Clay Triangle The clay triangle is used as a support for porcelain crucibles when being heated over a Bunsen burner.
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Crucible Tongs For handling hot crucibles; also used to pick up other hot objects. NOT to be used for picking up beakers!
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Ring stands and their Components Ring stands are a safe and convenient way to perform reactions that require heating using a Bunsen burner.
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Ring stands and their Components Utility Clamps Utility clamps are used to secure test tubes, distillation columns, and burettes to the ring stand.
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Ring stands 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 is asbestos!
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Electronic Balance Accurately measures masses of solids up to.001 grams
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Cleaning Brushes Cleans specific glassware Test tube brush Beaker brush Flask brush
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What have we done so far? Use the pictures to work out the words –they are words we have used in the past 4 lessons
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Heat+proof +matt Beak + ER Try + pod
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Safe + t + rules Tess+ tube Tong + s
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