Safety in the Elementary Science Classroom and Laboratory CAST ‘08 Fort Worth, Texas Charles A. Dana Center The University of Texas at Austin The purpose of this seminar is to… • understand safety laws, rules, and regulations and their requirements related to public schools. • examine ways of improving safety in science laboratories and classrooms. • provide tools that can be used to solve problems related to safety issues. School Chemistry Labs—scene of some frightening accidents—expose lack of safety oversight “In a blinding flash, the routine high school chemistry experiment turned to chaos. An alcohol-fueled fireball shot into the classroom, searing the skin of three junior honor students in the front row.” Tammy Webber, Associated Press, 2002 Where does it specify safety must be taught in Texas’ classrooms? Laboratory and field investigations must be part of the instructional time in K–12 science classes. Texas Safety Standards K-12 Having fun with Sodium metal What’s wrong with this activity? TEKS 6.7(B) Classify substances by their chemical and physical properties. Released TAKS Question on Safety * “The accident rate in schools is 10– 50 times that of the chemical industry”. NSTA, Guide to School Facilities, 1999 If an accident occurs in a laboratory • • • • • • • How should you respond if a student is injured? Who notifies the principal? Who alerts the school nurse? Do you include custodial staff? Who notifies the parents? Who supervises the other students? What happens if you are injured? Emergency Response System • Establish an emergency response team. • Determine should serve on the team. • Define the team’s responsibilities. After the accident is over • Were the safety procedures adequate? • Did you have the safety equipment to respond appropriately? • Did you have proper first-aid training to respond appropriately? • Were accident reports completed and filed? • Were steps taken to prevent similar accidents? Scenario I • Read the scenario to yourself. • Discuss what happened during the accident with a person at your table. • Together, complete the form on the reverse side of the scenario. • Decide who will be the spokesperson. Science Facility and Safety Equipment Checklist Place a (√) in the box if the item is present in this science laboratory room. www.utdanacenter.org/sciencetoolkit Laboratory Safety Equipment • Eye/face Wash • Drench Hose • Fire Extinguisher • Emergency Fire Blanket • First Aid Kit Fire Extinguishers What type is needed for science laboratory rooms? Classes of Fires and Types of Fire Extinguishers Class A Fire Class B Fire Common combustibles Flammable liquids Class C Fire Electrical fires Class D Fire Flammable metals Type ABC fire extinguisher for science laboratory rooms Type D fire extinguisher for chemical storage rooms Emergency Fire Blanket Drench hose Recommended for 5th and 6th grade laboratory rooms. Personal Protective Equipment • Protective Eye Wear • Laboratory Aprons • Protective Gloves Standards for safety goggles adjustable head band flexible frame shatter-proof lens forms a seal around the eyes Must meet ANSI Standard Z87.1-1989 Eye protection using proper fitting safety goggles. These safety goggles met ANSI Standard Z87.1-1989 Predict how well these safety glasses will protect a student’s eyes? These safety glasses do not meet ANSI Standard Z87.1-1989 Results from a frontal splash to the face. A few seconds after the chemical splash with safety glasses remaining on student’s face. Maintaining Personal Protective Equipment Protective Eye Wear Safety Goggles Clean with warm water and soap Replace scratched lenses Replace frayed elastic strap Sanitize between wearing Laboratory Aprons Replace broken neck straps Wash in warm water with soap at the end of each semester Discard cracked or damaged aprons Protective Gloves Wash with warm water and soap while wearing the gloves, dry, and turn inside out for storage Store in re-sealable plastic bag Discard damaged gloves Scenario III • Read the scenario to yourself. • Discuss what happened during the accident with a person at your table. • Together, complete the form on the reverse side of the scenario. • Decide who will be the spokesperson. Laws, Rules, and Regulations • OSHA Eye and Face Protection • Least Restrictive Environment • Tort Claims • Equal Educational Services • Civil Immunity Laws, Rules, and Regulations • Alternative Settings for Behavior Management • Protective Eye Devices in Public Schools Laws, Rules, and Regulations • Hazardous Substances • Hazard Communications Act • Commissioner’s Rules Concerning School Facilities • Educator’s Code of Ethics • Guidelines for Selection and Use of Face and Eye Protection Hazard Communication Act All science teachers are required to receive training on this law. Comprehensive HAZCOM Program • Informing employees of workplace hazards • Labeling chemical containers • Reading and understanding MSDS • Training for employees Reading and Understanding Chemical Labels Primary Container Label • Name of material—solution concentration • Name of components and mixture concentrations • Appropriate warning signage • Potential hazards • Immediate first aid measures Chemical Label Personal Identity Protection of Chemical Information First Hazard AidWarning Chemical Formula Abstract Weight Number 24-Hour Number Date Received Hazard Rating Manufacturer or Distributor Temporary Container Labels • Name of chemical • Appropriate hazard warnings Can you read this chemical label? According to HAZCOM, what must you do? With a partner, use the chemical labels to answer the questions. Material Safety Data Sheets Interpreting and Understanding Information on a MSDS MSDS must: • accompany chemicals • conform to OSHA standards • be maintained by school • be written or electronic copies • replaced every 3 years • be readily available on request The school district shall not permit use of chemical if it does not have an MSDS. Maintain a chemical inventory list and a current copy of the MSDS for each chemical used or stored in the science workplace. • Notebook (alphabetic order) • MSDS CD-ROM • On-line retrieval Material Safety Data Sheet (MSDS) Courtesy of Holly Ahern Sargent-Welch Silver Nitrate MSDS: Section I * * HMIS (Hazardous Materials Industrial Standards) Silver Nitrate MSDS: Section V Silver Nitrate MSDS: Sections VII and VIII Use the MSDS packet to answer the questions. MSDS Glossary of Terms Section I CAS No. Definition Online MSDS Resources www.flinnsci.com www.fisheredu.com www.freyscientific.com www.msdsprovider.net www.sargentwelch.com Charles A. Dana Center Science Website www.utdanacenter.org/sciencetoolkit James W. Collins Charles A. Dana Center The University of Texas at Austin 2901 North IH-35 Austin, TX 78722 (512) 232-6002 jwcollins@mail.utexas.edu