Ateneo de Iloilo - SMCS Science Laboratory Orientation PDF

Ateneo de Iloilo - SMCS Welcome to the SCIENCE LABORATORY  Session FLow Prayer Intended Learning Outcomes Science Laboratories General Laboratory Guidelines Laboratory Attire General Safety Principles  Intended Learning Outcome: Develop awareness of the different safety measures an...

Ateneo de Iloilo - SMCS Welcome to the SCIENCE LABORATORY  Session FLow Prayer Intended Learning Outcomes Science Laboratories General Laboratory Guidelines Laboratory Attire General Safety Principles  Intended Learning Outcome: Develop awareness of the different safety measures and procedures in the laboratory; Develop awareness of the proper laboratory attire Recognize the common laboratory apparatus and equipment.  Science laboratories GENERAL SCIENCE BIOLOGY LABORATORY LABORATORY PHYSICS CHEMISTRY LABORATORY LABORATORY  Science laboratories SENIOR HIGH SCHOOL GRADE SCHOOL LABORATORY LABORATORY General Laboratory guidelines  Before the start of the Laboratory activity, you must do the following: ⚬ Must walk in a single file following the keep right rule when transferring from one classroom to the laboratory and vice versa. To maintain order, students must go out from their classrooms in rows and from the laboratory in groups Before the start of the Laboratory activity, you must do the following: ⚬ Fill out the borrower’s slip completely. ⚬ Submit the borrower’s slip with the teacher’s signature to the laboratory in-charge.  Before the start of the Laboratory activity, you must do the following: ⚬ Secure the needed materials from the laboratory in charge and immediately check the said materials upon receiving them. ⚬ Upon checking and finding the glassware with breakage, immediately report to the lab in - charge before using it. Laboratory Attire what is the proper attire in the laboratory?  For safety purposes, you must wear your own laboratory gadgets such as laboratory gowns, masks, gloves, hairnet (for girls), and goggles at all times.  Girls must tie their hair. The lab gown must be buttoned. Wearing of facemask and gloves is a must, especially when dealing with harmful chemicals.  Borrowing of lab gowns is strictly prohibited. If the student fails to wear the laboratory gown, he/she will not be allowed to perform the experiment on that day. The student will be given an alternative activity to be determined by the teacher concerned for the entire duration of the laboratory period. This will be done in the room adjacent to the laboratory for monitoring purposes.  GROUP REQUIREMENTS Rags Marker Tissue Paper Masking tape Hand soap Sponge Dishwashing Powdered Scissor soap General safety principles  LABELLING, GROUPING, STORING, AND DISPOSAL OF CHEMICALS  Why is it important to properly label chemicals? Labelling of waste bottles Proper labelling of waste bottles and reagents is significant to avoid mixing of incompatible chemicals. Labelling of waste bottles Remove or totally deface the old label so there is no confusion over the contents and label it properly. CONSIDER ALL CHEMICALS HAZARDOUS/POISONOUS STORAGE OF WASTE Do not store flammable waste containers on a bench or floor. Storing is based on the compatibility of chemicals and in alphabetical order. STORAGE OF WASTE Never use metal cans in storing waste chemicals, instead use glass containers. Do not store waste in a fume hood where reactions are being carried out. Do not store waste bottles in sinks or floor drains.  Waste bottles Organic waste bottles must be capped. To avoid a pressure build-up in the bottle, cap it loosely. (Example: Detergents and alcohol) Do not leave the glass funnel in the waste bottle.  REQUISITION’S PROCEDURE 1. Secure a borrower’s slip; 2. Fill it out completely; 3. Submit the borrower’s slip with the signature to the science lab in – charge at least three days before the scheduled use of materials to give them ample time to prepare; 4. Return the borrowed materials (cleaned and dried after used).  BREAKAGES/DAMAGES/LOSSES a. Broken or damaged and, or lost equipment must be replaced by the student or paid in the cashier’s office upon issuing the charge form. For this, a breakage slip must be filled out and signed by the student’/s or lab group leader involved on the day the damage happened. b. The breakage, damage, or loss of laboratory materials must be settled in the soonest possible time.  BREAKAGES/DAMAGES/LOSSES C. In addition, the whole group members are collectively responsible for all breakages, loss, or damage of borrowed equipment or materials used during group experimentation or investigation. D. Failure to do shall mean non-signing of clearance. CLEANING OF EQUIPMENT AND APPARATUSES The students are required to clean and dry the equipment and lab apparatuses after use and return them in the same condition it was borrowed.  INDIVIDUAL REQUIREMENTS (ALL YEAR LEVEL EXCEPT GRADE 10) Lab gowns Gloves Mask Hairnet Goggles Hand towel  Do not eat or drink in the laboratory. Do not taste any chemicals or breathe any vapors given off by a reaction. Do not perform unauthorized experiments. FIRST AID AND EMERGENCY MEASURES ELECTRIC SHOCK Remove the source of shock as soon as possible. Use a dry towel or the pliers when moving “live” wires or equipment. If the victim is not breathing; seek medical attention. THERMAL BURNS Hold the burned area under cold water or in contact with ice for several minutes. Do not apply ointment or bandage. If the burn is large and severe; call a physician at once. CUTS For minor cuts, allow to bleed for a few seconds. Remove bits or fragments of material from the wounded area and apply a disinfectant and bandage. For serious cuts, send to the doctor at once. Meanwhile, check the bleeding by applying pressure with a sterile pad over the wound. ACIDS OR ALKALIS ON SKIN Wash the affected area immediately and thoroughly with plenty of water for at least 10-15 minutes. ORGANIC SUBSTANCES Wash the affected area with rubbing alcohol. Then, clean well with soap and water. FIRES FROM BURNING REAGENTS Turn off the gas burners and cover the mouth of the burning vessel with a damp cloth to extinguish the fire. For larger fires, use dry sand or a fire extinguisher. EYE ACCIDENTS Immediately flush the eyes with a stream of water or eyewash solution for at least 15 minutes. Do not attempt to apply any chemical neutralization to avoid reactions within the eyes. In all cases, take the patient to the school clinic. POISONING BY SWALLOWING Dilute the poison as fast as possible by drinking plenty of water. Then neutralize the poison; for acids – milk of magnesia, for alkalis - diluted vinegar, and for other poisons – induce vomiting by freely giving lukewarm water with two (2) tablespoons of salt per glass until expelled liquid is clear. Get medical attention.  Intended Learning Outcome: Develop awareness of the different safety measures and procedures in the laboratory; Develop awareness of the proper laboratory attire Recognize the common laboratory apparatus and equipment.