Vocabulary: lab safety
laboratory investigations have special hazards which must be
taken into consideration. In the high school living
environment/biology laboratory, your teacher will usually
engage in a pre-lab discussion which will include a discussion
of the lab methods, special instructions, and most
importantly, the specific safety procedures which are involved
in the laboratory experience.
Safety in the laboratory must be a primary concern to both
student and teacher. Specific safety concerns vary from
between different science courses and laboratories, but many
safety concerns and precautions need to be taken in all
science laboratories. At the beginning of most laboratories,
the teacher will engage in a pre-lab discussion. Many safety
procedures will be discussed during these discussions. It is
important to listen attentively and follow the safety
procedures given by the teacher.
Some General Lab Safety Rules
|1. Keep all flammable
materials away from open flames or dangerous chemicals.
2. Tie back long hair when you are
working with an open flame.
3. Do NOT mix chemicals or perform unscheduled experiments without your teacher's approval.
4. Never use chemicals from an unlabeled container.
Do not taste, smell, or touch chemicals unless
specifically instructed by your teacher to do so.
5. Wear safety goggles during
experiments involving dissection, heating, hammering or while using
acids/bases or other chemicals. If you do not have
goggles on, stay away from students that are experimenting.
6. Point the open end of a test tube or flask away
from yourself and others while heating it. Never heat a
7. Use liquid squeeze bottles only for their
8. Keep the lab clean and discard materials in
containers designated for this.
9. Be careful picking up hot materials, especially
glassware. Hot glass and cold glass appear the same.
Always use heat resistant material to pick up hot
10. Do not force glass tubing into a stopper. Use
glycerine or water to lubricate the glass before doing
11. Do not eat in the lab or place pencils, pens,
or other materials in your mouth.
12. Never return excess chemicals back to their
13. Always dispose of materials
as per your teacher's instructions. Never pour chemicals
down the drain unless instructed.
14 Know where all laboratory safety equipment is
located in the lab and how to use it.
Eye Wash Station
Some Dissection Safety Rules
|1. If you wear contact lenses, these
should be removed when working near chemicals or
dissections. Contact lenses can hold chemicals in the
eye(s) increasing the potential damage in the event of
an accidental splashing of chemicals into the eye(s).
2. Inform your teacher of any illness as a result of
exposure to chemicals used in specimen preparation.
3. Avoid contact with preservative chemicals. Rinse
the specimens completely before dissection.
4. Properly mount dissection specimens to dissecting
pan. Do not dissect a specimen while holding it.
5. Handle scalpel or razor blade (safety edged) with
6. Always cut away from your body and away from
7. Never ingest specimen parts or remove
specimens/specimen parts from the classroom. Properly
dispose of dissected materials.
8. Store specimens as directed by your teacher. Clean
up the work area and return all equipment to the proper
place when the dissection is completed.
9. Wash your hands after each dissection.
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