Lesson 1, Unit 1: Lab Safety Flashcards
Understand the lesson and study it for the quiz
what should you do regarding lab instructions and procedures
review lab instructions ahead of time; follow lab procedures exactly; never do an unauthorized experiment
Safety symbols
they are important to know because they commonly appear in laboratory activities; they remind you to work carefully
what should you do regarding the chemical storage/acid cabinet
never open it unless instructed; never take any chemicals or specimens from the lab; never touch any equipment, chemicals, or other materials unless instructed to do so
what should you do regarding eating/drinking and horseplay
no eating or drinking; never use glassware to eat/drink (dangerous); never engage in practical jokes or horseplay
what should you do regarding safety goggles
wear them at all times during the lab; wear them when working with chemicals, flames, heating devices, or if possibility of flying debris
what happens if a chemical goes into one’s eye
use the eyewash station; flush in water for 15 minutes, and notify the teacher
what should you do regarding lab aprons or the dress code in general?
wear a lab apron when working with corrosive chemicals or substances that can stain; tie back long hair; closed-toe shoes; never wear loose clothing/jewelry
what should you do regarding plastic gloves?
wear disposable gloves when working with organisms and harmful chemicals; keep your gloved hands away from your face; dispose of gloves according to lab procedures; if a chemical spills on your skin, notify the teacher and rinse with water for 15 minutes; wash hands after every lab
heat-resistant gloves
use oven mitts or other hand protection when handling hot materials (hot plates or glassware)
what should you do when heating a container?
never look into a container as you are heating it (can go into your eyes); never point the end or tip of a test tube being heated at yourself or others; use a clamp/tongs to pick up glassware; never heat in a closed container (can cause the container to explode)
how to handle sharp objects?
scissors, scalpels, probes, and pins can cut your skin; always cut away from your body; always carry sharp objects with points and tips facing away from yourself and others; never try to catch falling sharp instruments; notify the teacher if you get cut, no matter how minor it may be
Breakage
broken glass and sharp objects do not go in trash cans; the instructor/lab assistant will clean up broken glass – inform immediately
Disposal
dispose of all lab materials according to lab procedures; be mindful of what goes down the sink
electric shock
only electrical plugs can go into an electrical outlet; unplug after use; keep all electrical cord, wires, etc. away from water/wet hands; be sure cords cannot trip anyone or knock over equipment if moved; no charging iPads in labs
physical safety
handle all equipment carefully; no stools/chairs… stand tall and keep clear; all backpacks along the back wall of lab; alert instructor if there is any reason you should not participate in certain lab procedures
what does saying “behind” or “scalpel” mean?
say “behind” or “scalpel” as passing
flames
tie loose clothes/hair back; never leave a heat source unattended; heated metal and glass look cool; use tongs or gloves before handling; do not place how glassware directly on lab bench or in cold water; follow instructions about lightning and extinguishing flames
no flames
identifies flammable materials – avoid contact with flames or heat source
corrosive chemicals
read all labels twice before removing a chemical from the container; only use the type and amount of chemical instructed to use; never touch, taste, or smell a chemical unless instructed by the teacher; never mix chemicals unless instructed to
how to mix chemicals and diluting an acid
mix them carefully; keep lids on chemical containers when not in use; when diluting an acid, pour the acid into water (neutral); wash hands after the lab is complete
Fumes
work in a ventilated area and avoid inhalation; use a wafting motion to direct odor to nose only if instructed to do so
Animal safety
only handle living organisms with instructor’s permission; always treat living things and preserved organisms humanely; wash your hands after handling animals; RAT DISSECTION - CLOSEST LEGAL EXAMPLE TO OUR INTERNAL ANATOMY
plant safety
handle plants only as directed by instructor; wash your hands after handling plants; tell your teacher if you have any plant allergies; like an organism, plants should be considered possibly harmful
what to do in case of an emergency
know the locations of the fire extinguisher, fire blanket, body shower, eyewash station, and first aid kit
