LABORATORY and SAFETY EQUIPMENT AND THEIR FUNCTIONS

Drill # 17 9/17/14 List 10 lab equipment items List 10 lab equipment items Describe their use (guess) Describe their use (guess)

Topic: Lab equipment function Objective: SWBAT Objective: SWBAT Explain the function and proper use of 15 lab equipment items Explain the function and proper use of 15 lab equipment items

Short video

Notes Take notes from the following slides Take notes from the following slides

Goggles Most important piece of lab equipment Most important piece of lab equipment Protects eyes from broken glass, chemicals, and flames. Protects eyes from broken glass, chemicals, and flames.

Lab Aprons Protects clothes from chemicals Protects clothes from chemicals

Eye Wash Rinse eyes for min. if exposed to chemicals Rinse eyes for 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) 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) If a chemical is spilled over a large part of the body (all over clothes or legs)

Beaker May be heated May be heated Used to hold or mix chemicals Used to hold or mix chemicals

Stirring Rod Glass rod used for stirring Glass rod used for stirring BE CAREFUL! They break easily BE CAREFUL! They break easily

Erlenmeyer Flask May be heated May be heated Used for mixing chemicals Used for mixing chemicals

Graduated Cylinder Measures volumes of liquids 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 May be heated Holding small amounts of chemicals Holding small amounts of chemicals For small reactions For small reactions

Wire Gauze Spreads out the heat produced by a Bunsen burner Spreads out the heat produced by a Bunsen burner Can place a beaker on top Can place a beaker on top

Test Tube Holder DUHHHHH DUHHHHH It holds a test tube

Test Tube Rack Holds test tubes in a vertical position. Holds test tubes in a vertical position. Allows for clear sight. Allows for clear sight. Drying rack Drying rack

Ring Stand Multi-purpose, mostly used as a support to heat chemicals and hold burets. Multi-purpose, mostly used as a support to heat chemicals and hold burets.

Funnel Holds filter paper for filtering solutions. Holds filter paper for filtering solutions. Transferring liquids to smaller narrow necked containers. 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. 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 Used as a beaker cover Can be used to place small amounts of chemicals on Can be used to place small amounts of chemicals on (looks like a contact lens)

Evaporating Dish Holds small volumes of liquids being evaporated. Holds small volumes of liquids being evaporated.

Plastic Wash Bottle Dispenses water for rinsing equipment Dispenses water for rinsing equipment

Crucible and Lid Holds small amounts of chemicals for heating at high temperatures. Holds small amounts of chemicals for heating at high temperatures.

Clay Triangle Supports a crucible in a ring stand apparatus. Supports a crucible in a ring stand apparatus.

Crucible Tongs Pick up and hold small hot items like a crucible. Pick up and hold small hot items like a crucible.

Forceps Used to pick up small items. Used to pick up small items.

Bunsen Burner (& Striker) Controls release of natural gas for burning. Controls release of natural gas for burning. Tubing connects to gas source. Tubing connects to gas source. Striker with flint is used to ignite the burner (or matches). Striker with flint is used to ignite the burner (or matches).

Electronic Balance Measures mass in grams Measures mass in grams

Rubber Stopper Covers test tube for mixing Covers test tube for mixing

Scoopula Used to transfer solids from one container to another Used to transfer solids from one container to another

Test Tube Brush Cleans out a test tube Cleans out a test tube

Thermometer Takes temperature (in Celsius) Takes temperature (in Celsius)

Pipette Used for measuring very small volumes of liquids Used for measuring very small volumes of liquids

Guided Practice Make a poster showing how lab items are used Make a poster showing how lab items are used Include illustrations, labels and captions Include illustrations, labels and captions This may be completed individually or in groups This may be completed individually or in groups Use small voices and stay on task Use small voices and stay on task

Individual Practice 10 min QUIET WORK Create 5 multiple choice questions for Lab Equipment quiz Create 5 multiple choice questions for Lab Equipment quiz Include 4 choices Include 4 choices Only one correct answer + 3 distractors Only one correct answer + 3 distractors Provide an answer key Provide an answer key

Did we achieve the objective? Explain the function of 15 lab equipment items Explain the function of 15 lab equipment items

HW Safety review cartoon-pick up handout Safety review cartoon-pick up handout

ET What is the use of What is the use of Clay triangle Clay triangle Graduated cylinder Graduated cylinder Beaker tongs Beaker tongs