science equipment and meaning
DESCRIPTION
Science equipment and meaning. . By Kate Harrison Myp 2. Beaker. Beaker: a liquid-measuring container. It helps us measure different liquids. We do it by pouring liquid into the container and looking at what it measures by looking at the numbers. . burette. Measures volume of solution - PowerPoint PPT PresentationTRANSCRIPT
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Science equipment and meaning.
By Kate HarrisonMyp 2
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Beaker
• Beaker: a liquid-measuring container. • It helps us measure different liquids. We do it
by pouring liquid into the container and looking at what it measures by looking at the numbers.
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burette
• Measures volume of solution • A uniform-bore glass tube with fine gradations
and a stopcock at the bottom, used especially in laboratory procedures for accurate fluid dispensing and measurement.
The burette is commonly used in titrations to measure precisely how much liquid is used.
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Clay triangle• A wire frame with porcelain.• A clay triangle, physically, is three sets of two
wires with the ends twisted to form a triangle.• The clay triangle is used to hold a crucible
while the crucible is heated.
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Wire gauze
• Used to spread heat of a burner flame. Wire gauze can be used to support a container (such as a beaker or flask) during heating. When the bunsen burner flame is beneath it, with a tripod, the wire gauze helps to spread the flame (and heat) out evenly over the container.
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Test tube
• Used as holder of small amount of solution. • The definition of a test tube is “clear, cylindrical glass tube usually open at one
end and rounded at the other, used in laboratory experimentation."
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Forceps
• Holds or picks up small objects
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Graduated pipette
• Measures solution volumes.
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Graduated cylinder
• Measures approximate volume if liquids.• Graduated cylinders are specifically designed
to make accurate liquid volume measurements. The volume is read from the lowest portion of the meniscus of the liquid
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Crucible
• Used to heat a small amount of a solid substance at a very high temperature.
• A crucible is a container of a strong material capable of withstanding very high temperatures.
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Funnel
• Used to transfer solids and liquids without spilling.
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Thermometer
• The main function of a thermometer is to Measure temperature.
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condenser
• Used in distillation.• Its function is to Condense substances in gas
form back into liquid
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balance
• Measures mass of materials. • You place the object on the weight on the left
side and move the three weights. When they arrow on the right side is on 0 then you add up the number on the weights and that is the total mass of your object.
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pH meter
• A pH meter Measures acidity of solutions.
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Centrifuge
• Separates materials of varying density.
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Pipette
• Used to transfer measured substances of varying density.
• Gives drop by drop.• Varies in designs.
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Droppers
• For addition of liquids, drop by drop.• It’s a device that can measure out one drop of
water somewhat accurately.
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Glass funnels
• For funnelling liquids from one container to another, or for filtering when equipped with filter paper.
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Graduated cylinders
• For measurement of an amount of liquid. The volume of liquid can be estimated to the nearest 0.1 mL with practice.
• How it works.. Picture..
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Ring stand (with rings or clamps)
• For holding pieces of glassware in place. • Its function is for supporting laboratory
apparatus.
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Test tubes
• For holding small samples or for containing small-scale reactions.
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Test-tube holders
• For holding test tubes when tubes should not be touched.
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Tongs
• Similar function to forceps, but are use full for larger items.
• To move things/objects about.
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Volumetric flasks
• To measure precise volumes of liquid or to make precise dilutions.
•
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Wash bottles
• For dispensing small quantities of distilled water.
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Watch glasses
• For holding small samples or for covering beakers or evaporating dishes.
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Wire gauze on a ring.
• Supports beakers to be heated by bunsen burner.
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THANK YOU FOR WATCHING
By Kate Harrison Myp 2