Science Lab Safety Rules - Georgetown High School
Science Lab Safety Rules
1. Always wear _____________________________________. There will be no exceptions to this rule!
2. Conduct yourself in a _________________________ manner at all times in the laboratory.
3. Study your lab assignment before you come to class and have your ___________ completed. Pay particular attention to dangerous reagents or special safety precautions.
4. Never work in the lab without ____________________________.
5. Never perform an ________________________________________________.
6. Never ______________________ by mouth and never ________________________ gases or other vapors.
7. Be careful with ___________________________.
8. Never __________________________________ any part of this classroom.
9. Report any accident, injury, chemical spill or _________________________________ procedure at once.
10. Tie back _____________________________ and secure _______________________________.
11. Do not leave a ______________________________ burner unattended.
12. Read labels of ____________________________________________ carefully before using the chemicals.
13. Never return ______________________________ chemicals to a reagent bottle. No not put a pipet, dropper or spatula in a reagent bottle – pour the reagent into a small beaker instead.
14. Always pour __________________ slowly into water to dilute – never pour water into acid. (Remember: ADD ACID)
15. Place broken glass, solid substances and used chemicals in __________________________________ container. Never throw a chemical down the sink unless given permission by Mrs. Hogdson.
16. Keep your lab area as _________________ as possible at all times.
17. _____________________________________________ with soap and water after each experiment.
18. To test the odor of a solution, do not hold it directly under nose. Hold it away and _______________________________ over the solution towards you. (wafting)
19. Use the __________________________________ when working with volatile substances or poisonous vapors.
Emergency Situations
1. Spray fire extinguisher left to right at the base of the flame. Where is the fire extinguisher?_________________________
2. If clothing catches fire wall calmly to the safety shower. If your lab partner’s clothing catches fire use the fire blanket to smother the fire. How do you use the safety shower?____________________Where is the fire blanket?__________________
3. Corrosive chemicals splashed on skin should be flushed off promptly with copious amounts of flowing water for at least 15 minutes. If splashed on clothing, the clothing must be removed while under the safety shower. Stay under the shower for at least 15 minutes while Mrs. Hodgson calls the nurse or 911.
4. A corrosive chemical in the eye is a very serious matter. Get to an eye wash fountain immediately (within 15 seconds if possible). Wash the eye for at least 15 minutes while someone else calls the nurse. Keep the eyelid open fully; move the eyeballs up, down, left, right, criss-cross, round and round. How do you use the eye wash fountain?_____________________
Description/Use Apparatus
Beaker
Glass container, may be heated
Graduated Cylinder
Glass marked with mL scale, used
to measure volume
Erlenmeyer and
Florence Flask
Glass, may be heated
Erlenmeyer Flask Florence Flask
Test Tube
Glass, many uses, can be heated
Test Tube Holder[pic]
Metal clamp with a spring handle to
hold a test tube
Tongs
Metal, many types, used to pick
up and hold objects
Double Buret Clamp
Metal clamp with flexible clips,
used to hold burets
Description/Use Apparatus
Pipestem Triangle
Triangular wire frame with clay material coverings, used to support the crucible
Crucible and Cover
Small porcelain dish with cover,
used to heat small amounts of solid
material at high temperature
Wire Gauze
Wire screen used to spread the heat
of a flame
Burner
Metal heating device connected to gas
outlet with rubber tubing used to heat chemicals in beakers or test tubes
Ring Stand
Metal rod upright with heavy base
used as a support
Buret
Glass marked with mL and fitted with a stopcock, pinch clamp, or glass bead used to withdraw and measure volumes of solutions in titrations
Volumetric Flask
Glass marked off with liter capacity with a glass stopper used in the preparation of solutions
Description/Use Apparatus
Reaction Plate
Plastic with 12-36 wells, used to hold liquids in micro equipment
Iron Ring
Iron ring with screw fastener, several sizes, used to fasten to the ring stand as a support for apparatus
Test Tube or Buret Clamp
Metal clamp with screw fastener, swivel and lock nut, adjusting screw, and curved clamp, used to hold apparatus, may be fastened to the ring stand
Mortar and Pestle[pic]
Heavy porcelain dish with grinder, used
to grind chemicals into a powder
Scoopula
May be of metal or porcelain, used
to transfer solid chemicals in weighing
Triangular File
Metal file with three cutting edges,
used to scratch glass to file
Test Tube Rack
Wood, metal, or plastic rack used to hold test tubes in an upright position
Wash Bottles
Various sizes, squeezable plastic bottle with angular tip used to dispense distilled water
Description/Use Apparatus
Test Tube Brush
Brush with wire handle use to scrub apparatus
Stirring Rod
Glass rod used to stir combinations
of materials or used in pouring
liquids
Evaporating Dish
Porcelain dish used as a container
for small amounts of liquid being evaporated
Watch Glass
Curved glass used as a beaker
cover or used in evaporating very
small amounts of liquid
Funnel[pic]
Glass or plastic used to hold filter paper
or used to aid in pouring
Forceps
Metal used to pick up or hold small objects
Thin Stem Disposable Pipette
Plastic used in micro experiments
to transfer small amounts of liquid
Flint Striker
Metal with flint used to spark or light flame
Name____________________Per._____Date___________
View the picture, and answer the questions concerning lab safety.
Questions:
1. List 3 unsafe activities shown in the illustration and explain why each is unsafe.
2. List 3 correct procedures depicted in the illustration.
3. What should Bob do after the accident?
4. What should Sue have done to avoid an accident?
5. Compare Luke and Duke's lab techniques. Who is following the rules?
6. What are three things shown in the lab that should not be there?
7. Compare Joe and Carl's lab techniques. Who is doing it the correct way?
8. What will happen to Ray and Tim when the teacher catches them?
9. List three items in the illustration that are there for the safety of the students in the lab.
10. What is Betty doing wrong?
Name: __________________
Lab Safety Cartoon
Instructions:
• Single frame
• 4 colors (minimum)
• 1-2 line caption or “speaking bubbles”
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