Section 2 laboratory equipment and functions
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laboraoty equipments and functions
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Section 2 laboratory equipment and functions
- 1. Section2: Laboratory Equipment and Functions 1 of 5 Study the table below. Be able to identify the name of each piece of equipment, as well as its function or use in the laboratory. Name Picture Use Ring stand Supports the bunsen burner, iron ring, pipestem triangle, and other items, often while heating a substance. Pipestem triangle Supports the crucible when being heated over an open flame Evaporating dish Used to evaporate excess solvents to create a more concentrated solution. Test tubes Holds small amounts of liquids for mixing or heating. Beaker Holding water (also used to heat liquids) Erlenmeyer flask Narrow-mouthed container used to transport, heat, or store substance. Often used when a stopper is required. Volumetric flask Flask calibrated to contain a precise volume at a particular temperature. Used for precise dilutions and creating standard solutions. Watch glass Keeping liquid contents in a beaker from splattering Mortar & pestle Used to grind chemicals to powder
- 2. Section2: Laboratory Equipment and Functions 2 of 5 Iron ring Supports a beaker over a bunsen burner. Wire gauze is usually placed on top of this structure. Utility clamp Used to hold a test tube or other piece of equipment in place on a ring stand. Wire gauze Suspending glassware over the Bunsen burner Tongs Transport a hot beaker; remove lid from crucible. Triple-beam balance Obtaining the mass of an object Test tube clamp Heating contents in a test tube Bunsen burner Heating (flame-safe) contents in the lab Forceps Used in dissection to grasp tissues or pick up small items. File Used to grind down materials or sharpen items. Wire brush Used to clean the inside of test tubes or graduated cylinders Test tube rack Holding many test tubes filled with chemicals (or for drying after washing) Funnel Used to pour liquids into containers with small openings; also used to hold filter paper Scoopula Scooping solids/powders.
- 3. Section2: Laboratory Equipment and Functions 3 of 5 Graduated cylinder Measuring specific amounts of liquids (65 mL) Spatula Measuring/removing small amounts of solids or powders (often when obtaining mass) Wash bottle Used to wash down specific pieces of equipment with water or keep materials moist. Micropipets Used to measure and dispence very small amounts of liquids. (ex. 0.5 mL) Buret Measuring specific amounts of liquids (often determining amounts of acids or bases needed) (ex. 13 mL); releasing small amounts of acids or bases into other solutions. Dropper Used to obtain small amounts of liquids (not precise)
- 4. Section2: Laboratory Equipment and Functions 4 of 5 Thermometer Used to measure temperature Pipet Used to measure and dispense small amounts of liquids (ex. 1 mL) Well plate Mixing very small amounts of chemicals together and comparing results. Corks Used to seal or stop flasks or test tubes. Hot plate Used for consistent heat; used to heat substances that may be flammable. Florence flask Flask with a round body and flat bottom. Used to hold and heat liquids. Answer the following questions on a separate sheet of paper. Remember to use the following formatting: - If typed, use size 12 Times New Roman font and single spacing. - If handwritten, print your responses neatly. - Leave one line of blank space between each response. - Use the following heading in the top left corner of your response sheet: Student Name Pre-AP Biology Summer Assignment, Section # Date of completion (not the due date)
- 5. Section2: Laboratory Equipment and Functions 5 of 5 Section 2 Review Questions: 1. Name 3 pieces of glassware used for heating liquids. 2. Which pieces of equipment are used to obtain precise measurements of liquids? 3. Which pieces of equipment are used for heating other substances? 4. Which pieces of equipment are used for obtaining solids for measuring mass? 5. Identify the difference(s) between tongs and test tube clamps. Be prepared for a short quiz reviewing laboratory equipment and uses during the first week of school. Some items will be available on display for you to identify.