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

oC

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.

LighterLighter

These strikers are These strikers are used to light lab used to light lab burners. burners.

The flints on The flints on strikers are strikers are expensive. Do not expensive. Do not operate the striker operate the striker repeatedly just to repeatedly just to see the sparks!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 ComponentsRingstands and their ComponentsRing ClampRing Clamp

Ring clamps connect Ring clamps connect to a ringstand, and to a ringstand, and provide a stable, provide a stable, elevated platform for elevated platform for a beaker to be heated.a beaker to be heated.

Will also hold a clay Will also hold a clay triangle and funnel triangle and funnel during filtering.during filtering.

Ringstands and their ComponentsRingstands and their ComponentsWire GauzeWire Gauze

Wire gauze sits on Wire gauze sits on the iron ring to the iron ring to provide a place to provide a place to stand a beaker. stand a beaker.

On older wire gauze, On older wire gauze, the white material the white material was asbestos – was asbestos – currently it is a currently it is a ceramic.ceramic.

Crucible with lid: heat small samples

Crucible Triangle: Cradles crucible to secure over a

flame

Crucible TongsCrucible Tongs

For handling hot For handling hot crucibles; also used crucibles; also used to pick up other hot to pick up other hot objects - objects - NOTNOT to be to be used for picking up used for picking up beakers! 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 RodStirring RodThe stirring rod is The stirring rod is used to: used to: a) manually stir a) manually stir solutions; solutions; b) assist in pouring b) assist in pouring liquids; and liquids; and c) to transfer a c) to transfer a single drop of a single drop of a solution.solution.

Rubber policeman Rubber policeman tip is used to remove tip is used to remove precipitates.precipitates.Stir with this end.Stir with this end.

SpatulaSpatula

Spatulas are used Spatulas are used to dispense solid to dispense solid chemicals from chemicals from their containers.their containers.

Chemicals should Chemicals should nevernever be be transferred with transferred with your bare hands.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 CanBroken Glass Box and Trash CanBroken Glass boxBroken Glass box to to dispose of any broken dispose of any broken glass, instead of the glass, instead of the trash can.trash can.

Trash Can Trash Can to to dispose of paper dispose of paper waste only!waste only!

Watch GlassWatch GlassA watch glass is A watch glass is used to hold a used to hold a small amount of small amount of solid, such as the solid, such as the product of a product of a reaction.reaction.

Can also be used Can also be used as a cover for an as a cover for an evaporating dish evaporating dish or beaker.or beaker.

Evaporating DishEvaporating Dish

The evaporating The evaporating dish is used for dish is used for heating stable heating stable solid compounds solid compounds and elements, as and elements, as well as for well as for evaporating evaporating nonvolatile nonvolatile solutions.solutions.

Weighing BoatWeighing Boat

Weighing boats are used to weigh solids Weighing boats are used to weigh solids that will be transferred to another vessel.that will be transferred to another vessel.We will also use squares of paper for this We will also use squares of paper for this purpose – throw them away after using.purpose – throw them away after using.NeverNever put chemicals directly on the put chemicals directly on the balance scale – it leaves residue and can balance scale – it leaves residue and can harm the balanceharm the balance

Wash BottleWash Bottle A wash bottle has A wash bottle has a spout that a spout that delivers a water delivers a water stream to a stream to a specific area.specific area.

Distilled waterDistilled water is is the only liquid that the only liquid that should be used in should be used in a wash bottlea wash bottle

NEVER squirt water at another NEVER squirt water at another student!!!student!!!

Distilled Water

Eyewash StationEyewash Station Push this handle to turn on the water – it will stay on until you pull it to turn off.

Flush your eyes for 15-20 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 ShowerSafety 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 ExtinguisherEyewash Bottle and Fire Extinguisher

Fire Extinguishers Fire Extinguishers are found behind are found behind the door, at the the door, at the door to my door to my chemical room chemical room and at the back and at the back left corner of the left corner of the lab stations.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