Schertz-Cibolo-Universal City ISD
Science Safety Rules and Student Contract
Science is a hands-on, minds-on laboratory class. Throughout the year, you will be doing many laboratory activities
that may require the use of hazardous chemicals or specialized equipment. In SCUCISD, safety in the science
classroom is the first priority for students and teachers. To ensure a safe science classroom, a list of rules has been
developed and provided to you. Please review the attached rules with your parent/guardian, sign the safety
contract, and return it to your teacher. Retain the safety rules for reference. Appropriate rules will be reviewed and
discussed before each lab.
When first entering the science room, do not touch any equipment,
chemicals, or other materials in the laboratory area until you are
instructed to do so.
14. Know what to do if there is a fire drill during a laboratory period:
containers must be closed, gas valves turned off, fume hoods turned
off, and any electrical equipment turned off.
Conduct yourself in a responsible manner at all times in the
laboratory. Horseplay, practical jokes, and pranks are dangerous and
15. Students are never permitted in science storage rooms, chemical
storage rooms, or preparation areas unless they are provided with
specialized training and accompanied by the teacher.
Be alert, listen for the teacher’s direction, and proceed with caution
at all times in the laboratory. Notify the teacher immediately of any
unsafe conditions you observe.
16. Handle all living organisms used in a laboratory activity in a humane
manner. Preserved biological materials are to be treated with respect
and disposed of properly.
Carefully follow all instructions, both written and oral. If you do not
understand a direction or part of a procedure, ask your teacher
before proceeding.
Experiments must be personally monitored at all times. You will be
assigned a laboratory station at which to work. Do not wander
around the room, distract other students, or interfere with the
laboratory experiments of others.
Perform only those experiments authorized by the teacher. Never
do anything in the laboratory that is not called for in the laboratory
procedures or by your teacher. Unauthorized experiments are
Labels and equipment instructions must be read carefully before use.
Set up and use the prescribed apparatus as directed in the laboratory
instructions or by your teacher.
Never work alone. No student may work in the laboratory without a
teacher present.
Do not eat food, drink beverages, or chew gum in the laboratory.
Do not use laboratory glassware as containers for food or beverages.
17. Any time chemicals, heat, or glassware are used, students will wear
chemical splash goggles. (Prescription eyeglasses do not offer
protection against chemical splashes to the eyes, therefore, students
wearing prescription glasses must wear goggles over their glasses.)
18. Goggles will be worn any time there is a risk of eye injury from flying
19. Notify your teacher if you wear contact lenses. In the event of an
accident, wearing contact lenses can pose a danger if foreign
materials are held against the cornea. For washing to be effective,
the lens must be removed quickly. The eyes will be flushed with
water and no attempt to salvage the contact lenses will be made by
the teacher. Eye safety is the primary concern.
20. Dress properly during laboratory activities. Long hair, dangling
jewelry, and loose baggy clothing are a hazard in the laboratory.
Long hair must be tied back and dangling jewelry and loose baggy
clothing must be secured. Shoes should completely cover the feet.
10. Keep hands away from face, eyes, and mouth while using chemicals
or preserved specimens. Wash your hands with soap and water after
performing all experiments.
21. Lab aprons and/or gloves should be worn during laboratory
activities when required to protect skin and clothing.
11. Observe good housekeeping practices. Work areas should be kept
clean and tidy at all times. Return all equipment clean and in
working order to the proper storage area.
22. All chemicals in the laboratory are to be considered dangerous.
12. Keep aisles clear. Push your chair or stool under your table when
not in use.
13. Know the locations and operating procedures of all safety equipment
including the eyewash station, safety shower, fire extinguisher, and
fire blanket. Know where the fire alarm and the exits are located.
23. Do not touch, taste, or smell any chemicals unless requested to do so
by your teacher. If you are instructed to smell fumes during the
investigation, do so by gently waving your hand over the container
so that the fumes are brought to you. Never inhale fumes directly
from the container as they may be concentrated and cause you
24. Always work in a well-ventilated area. Use the fume hood when
working with volatile substances or poisonous vapors. Never place
your head into the fume hood.
38. Hot and cold glass has the same visual appearance. Determine if an
object is hot by bringing the back of your hand close to it prior to
grasping it. Use tongs or heat-protective gloves if necessary.
25. Check the label on chemical containers twice before removing any of
the contents. Take only as much chemical as is called for in the
laboratory procedure.
39. Exercise extreme caution when using a burners or hot plates. Take
care that hair, clothing and hands are a safe distance from the heat
source at all times. Never reach over an exposed flame or hot plate.
26. Never return unused chemicals to their original containers. This
causes contamination of the chemical and may cause incorrect results
to occur in future investigations.
40. Do not put any substance into the flame or on the hot plate unless
specifically instructed to do so. Light burners only as instructed by
the teacher. Never leave a lit burner or an activated hot plate
unattended. Always turn the burner or hot plate off when not in
27. When transferring chemicals from one container to another, hold the
containers away from your body.
28. Take great care when transferring acids and other chemicals from
one part of the laboratory to another. Hold them securely and walk
29. Acids must be handled with extreme care. Always add acid to water,
swirl or stir the solution and be careful of the heat produced.
30. Never leave anything that is visibly reacting unattended.
31. Never dispense flammable chemicals anywhere near an open flame
or source of heat.
32. Never remove chemicals or other materials from the laboratory area.
33. Dispose of chemical waste properly. Sinks are to be used only for
water and those solutions designated by the teacher. Solid chemicals,
metals, matches, filter paper, and other insoluble materials are to be
disposed of in the proper waste containers, not in the sink.
34. Never handle broken glass with your bare hands. Use a brush and a
dustpan to clean up broken glass. Place broken or waste glassware in
the designated glass disposal container.
35. Inserting and removing glass tubing from rubber stoppers can be
dangerous. Always lubricate glassware before attempting to insert it
in a stopper. Always protect your hands with towels or cotton
gloves when inserting glass tubing into, or removing it from a rubber
stopper. If a piece of glassware becomes “frozen” in a stopper, take
it to your teacher for removal.
41. Never look into a container that is being heated. Never leave
anything that is being heated unattended.
42. Do not place hot apparatus directly on the laboratory desk. Always
use an insulating pad. Allow plenty of time for hot apparatus to cool
before touching it.
43. Do not use hair spray, hair mousse, or other flammable hair
products during or just before laboratory work where an open flame
is used. These products may contain highly flammable chemicals
that ignite easily. (Synthetic fingernails are also highly flammable.)
44. When removing an electrical plug from its socket, grasp the plug, not
the electrical cord.
45. Hands must be completely dry before touching an electrical switch,
plug, or outlet. Never connect, disconnect, or operate a piece of
electrical equipment with wet hands or while standing on a wet floor.
46. Report damaged electrical equipment immediately. Look for things
such as frayed cords, exposed wires, and loose connections. Do not
use damaged electrical equipment.
47. In the event of an accident or injury, follow the campus safety plan.
48. If materials or chemicals enter your eye, rush to the eye/face wash
station and flush the eyes with a continuous stream of water for at
least 15 minutes. Hold your eyelids open with your fingers, or get
assistance from your teacher.
36. Examine glassware before each use. Never use chipped or cracked
49. If a chemical should splash on your skin, immediately flush with
running water from the drench hose or safety shower for at least 15
minutes. Notify the teacher immediately.
37. Handle cutting instruments carefully. Never cut materials towards
you. Always cut away from the body.
50. Report any accident (spill, breakage, etc.) or injury (cut, burn, etc.) to
the teacher, no matter how trivial it may appear.