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



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


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 min
QUIET 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 of

Clay triangle

Graduated cylinder

Beaker tongs