General Lab Safety Rules Dress Code Wear safety

General Lab Safety Rules

Dress Code • Wear safety goggles whenever working with chemicals, burners, or any substance that might get into your eye. • Wear apron when working with chemicals or heated substances. • Tie back long hair to keep it away from any chemicals, burners, or other laboratory equipment. • Remove or tie back any article of clothing or jewelry that can hang down and touch chemicals or flames.

Before beginning an experiment, the teacher reminds the students how to use the safety equipment shown • What piece of safety equipment is most likely needed for this lab?

General Safety • Read all directions and follow directions exactly as they are written. • Never perform investigations your teacher has not authorized. • When in doubt, ask your teacher

• Take care not to spill any materials, but if a spill does occur ask your teacher about proper cleanup. Never pour chemicals or other substances into sink or trash container. • Never eat, drink, or bring food into the lab. • Report all accidents immediately, no matter how minor. • Be aware of the location of the first-aid kit, fire blanket, and eye wash station.

Heating and Fire Safety • Never heat a chemical you are not instructed to heat. A chemical that is harmless when cool can be • Never reach over an open dangerous when flame. heated. • When heating a test tube • Maintain a clean work or bottle, point the area and keep all opening away from you materials away from and others. flames. • Never heat a closed container.

Using Chemicals Safely • Never mix chemicals for “the fun of it”. • Never touch, taste, or smell a chemical unless instructed to do so by your teacher. • Use only those chemicals needed for the investigation. • Dispose of all chemicals as instructed by your teacher.

General Equipment • Never use broken or chipped glassware. Of glassware breaks, notify your teacher and dispose of the broken glass as instructed. • Handle scalpels or razor blades with extreme care. Always cut material away from you. • Always clean up your station and wash your hands after every experiment.

Which material should be disposed of after a lab, rather than being reused or recycled? • • Test tube that held salt water Cotton swab used to collect cheek cells Scalpel used to dissect plant specimens Large opened bottle of rubbing alcohol

Which statement applies to any laboratory situation? • Clear liquids in sterile glassware can be considered safe to drink. • Clean up a broken mercury thermometer with wet paper towels and dispose in trash. • Safety goggles are unnecessary if prescription glasses are worn. • Do not pour solution down the sink without teacher permission

Lab equipment • Beaker