LABORATORY and SAFETY EQUIPMENT AND THEIR

FUNCTIONS

Drill # 17 9/17/14

List 10 lab equipment items

Describe their use (guess)

Topic: Lab equipment function

Objective: SWBAT

Explain the function and proper use of 15 lab equipment items

Short video

Notes

Take notes from the following slides

Goggles

Most important piece of lab equipment

Protects eyes from broken glass, chemicals, and flames.

Lab Aprons

Protects clothes from chemicals

Eye Wash

Rinse eyes for 15-20 min. if exposed to chemicals

Fire Blanket

Wrap around a person whose clothes or hair have caught on fire (then they should drop and roll)

Shower

If a chemical is spilled over a large part of the body (all over clothes or legs)

Beaker

May be heated Used to hold or

mix chemicals

Stirring Rod

Glass rod used for stirring

BE CAREFUL! They break easily

Erlenmeyer Flask May be heated Used for

mixing chemicals

Graduated Cylinder

Measures volumes of liquids

Volumetric Flasks

round flask with a long neck and a flat bottom. These are used to measure an exact volume of liquid. There is a small line on the neck that indicates where these are to filled to (Use the bottom of the meniscus)

Florence Flask

has a round bottom and a long neck. It is used to hold liquids and can be easily swirled and heated

Test Tube May be

heated Holding small

amounts of chemicals

For small reactions

Wire Gauze

Spreads out the heat produced by a Bunsen burner

Can place a beaker on top

Test Tube Holder

DUHHHHH It holds a test

tube

Test Tube Rack

Holds test tubes in a vertical position.

Allows for clear sight.

Drying rack

Ring Stand Multi-purpose,

mostly used as a support to heat chemicals and hold burets.

Funnel Holds filter

paper for filtering solutions.

Transferring liquids to smaller narrow necked containers.

Ring Clamp One side clamps

to ring stand. Place wire gauze on ring and it will hold beakers and flasks for heating. Can hold small beakers or funnels.

Watch Glass Used as a

beaker cover Can be used to

place small amounts of chemicals on

(looks like a contact lens)

Evaporating Dish

Holds small volumes of liquids being evaporated.

Plastic Wash Bottle

Dispenses water for rinsing equipment

Crucible and Lid Holds small

amounts of chemicals for heating at high temperatures.

Clay Triangle Supports a

crucible in a ring stand apparatus.

Crucible Tongs

Pick up and hold small hot items like a crucible.

Forceps

Used to pick up small items.

Bunsen Burner (& Striker)

Controls release of natural gas for burning.

Tubing connects to gas source.

Striker with flint is used to ignite the burner (or matches).

Electronic Balance

Measures mass in grams

Rubber Stopper

Covers test tube for mixing

Scoopula

Used to transfer solids from one container to another

Test Tube Brush

Cleans out a test tube

Thermometer

Takes temperature (in Celsius)

Pipette

Used for measuring very small volumes of liquids

Guided Practice

Make a poster showing how lab items are used

Include illustrations, labels and captions

This may be completed individually or in groups

Use small voices and stay on task

Individual Practice 10 minQUIET WORK

Create 5 multiple choice questions for Lab Equipment quiz

Include 4 choices Only one correct answer + 3

distractors Provide an answer key

Did we achieve the objective?

Explain the function of 15 lab equipment items

HW

Safety review cartoon-pick up handout

ET

What is the use ofClay triangleGraduated cylinderBeaker tongs