Safety Test Study Guide
Format: Majority of the test is Fill-in. There is also some True/False and some Multiple choice
Ex. True/False
■ ■ Hot glass looks the same as cold glass. TRUE
■ ■ All chemicals in the lab are to be considered dangerous. TRUE
■ ■ Return all unused chemicals to their original containers. FALSE…..the source container could be contaminated. Place
in designated container unless told otherwise.
■ ■ Work areas should be kept clean and tidy. TRUE
■ ■ Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.
FALSE
■ ■ Never remove chemicals or other equipment from the laboratory. TRUE
■ ■ Chipped or cracked glassware is okay to use. FALSE
■ ■ Read all procedures thoroughly before entering the laboratory. TRUE
■ ■ All unauthorized experiments are prohibited. TRUE
■ ■ You are allowed to enter the chemical preparation/storage area any time you need to get an item. FALSE
■ ■ It’s okay to pick up broken glass with your bare hands as long as the glass is placed in the trash. FALSE
■ ■ Never leave a lit burner unattended. TRUE
Major Vocab:
Combustible: Capable of burning under ordinary conditions
Reagent: a chemical
Volatile: easily vaporized; ex. gasoline , acetone (nail polish remover)
Fume a vapor that can be toxic
Wafting: the process of gently moving your hand through the air to bring a few molecules toward you to detect an odor
Most important Concepts:
1. List 3 “things” needed for burning oxygen, a fuel, a spark
2. What do you do if your clothing catches fire stop drop, and roll. Never run.
3. List the names of the different types of fires and all the types of extinguishers that would put them out
A =ordinary combustibles like paper, wood) ……….Type A (water) or ABC (dry chemical)
B =flammable liquids like acetone)………………………….Type BC (carbon dioxide) or ABC
C = electrical…………………………………………………………….Type BC or ABC
D=metal…………………………………………………………………….Type D (sand)
4. What do you do if a large amount of chemical spills on your clothing or over a large part of your skin
Use the safety shower.
5. List the 2 steps, in proper order, to light a burner, using a match versus a striker
Light the match first, then turn on the gas
6. List, in correct order, the 3 steps to safely heat material in a test tube
a) Fill no more than ½ way
b) Point away from others
c) Heat from the top down and keep the test tube moving
7. Explain how to deal with spilled acids and bases
Always let your teacher know immediately AND:
a) If you spill a small amount on a small portion of your skin, wash with cool water
b) If you spill a large amount on your clothing or skin, use the safety shower
c) If you spill a small amount of acid on the table, react it with a weak base (like sodium bicarbonate as seen in
the video)
d) If you spill a small amount of base on the table, react it with a weak acid (like vinegar as seen in the video)
8. What do you do if you spill a volatile liquid: dry it up with paper towels which should be disposed of according to
your teacher’s directions THEN increase ventilation, both to “clear the air” and to prevent a spark from reacting
with the vapors.
9. How do you safely insert a glass rod into a rubber stopper ? lubricate the stopper with either glycerine or water,
then using a towel around your hands, use a twisting motion to, never push
10. How do you safely heat material in a flask ? clamp the flask at the neck, sit the flask on the wire which is
supported by the ring on the ring stand.
11. List DETAILED steps for the proper use of the following safety equipment:
Safety shower: pull the metal triangle bar to release the water onto your skin and or clothing
Eye Wash shower: hold your eyelids open with your fingers while using your elbow to push the lever to start the cool
water with which to flush your eyes for 15 to 20 minutes
Fire Extinguisher: pull the pin, aim the nozzle, squeeze the trigger. Using any type of extinguisher, don’t blast the
fire, spray above it