Lesson 1, Unit 1: Lab Safety

Question 1

what should you do regarding lab instructions and procedures

Answer 1

review lab instructions ahead of time; follow lab procedures exactly; never do an unauthorized experiment

Question 1

Safety symbols

Answer 1

they are important to know because they commonly appear in laboratory activities; they remind you to work carefully

Question 2

what should you do regarding the chemical storage/acid cabinet

Answer 2

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

Question 3

what should you do regarding eating/drinking and horseplay

Answer 3

no eating or drinking; never use glassware to eat/drink (dangerous); never engage in practical jokes or horseplay

Question 4

what should you do regarding safety goggles

Answer 4

wear them at all times during the lab; wear them when working with chemicals, flames, heating devices, or if possibility of flying debris

Question 5

what happens if a chemical goes into one’s eye

Answer 5

use the eyewash station; flush in water for 15 minutes, and notify the teacher

Question 6

what should you do regarding lab aprons or the dress code in general?

Answer 6

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

Question 7

what should you do regarding plastic gloves?

Answer 7

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

Question 8

heat-resistant gloves

Answer 8

use oven mitts or other hand protection when handling hot materials (hot plates or glassware)

Question 9

what should you do when heating a container?

Answer 9

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)

Question 10

how to handle sharp objects?

Answer 10

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

Question 11

Breakage

Answer 11

broken glass and sharp objects do not go in trash cans; the instructor/lab assistant will clean up broken glass – inform immediately

Question 12

Disposal

Answer 12

dispose of all lab materials according to lab procedures; be mindful of what goes down the sink

Question 13

electric shock

Answer 13

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

Question 14

physical safety

Answer 14

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

Question 15

what does saying “behind” or “scalpel” mean?

Answer 15

say “behind” or “scalpel” as passing

Question 16

flames

Answer 16

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

Question 17

no flames

Answer 17

identifies flammable materials – avoid contact with flames or heat source

Question 18

corrosive chemicals

Answer 18

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

Question 19

how to mix chemicals and diluting an acid

Answer 19

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

Question 20

Fumes

Answer 20

work in a ventilated area and avoid inhalation; use a wafting motion to direct odor to nose only if instructed to do so

Question 21

Animal safety

Answer 21

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

Question 22

plant safety

Answer 22

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

Question 23

what to do in case of an emergency

Answer 23

know the locations of the fire extinguisher, fire blanket, body shower, eyewash station, and first aid kit

Question 24

what should you do if you spill a harmful chemical on yourself or in your eyes?

Answer 24

start rinsing immediately and send your partner to get teacher’s help