Lab Safety
Objectives Today I will be able to: Understand how to act safely in the science classroom Apply safety rules to scenarios in the classroom Informal Assessment – monitoring student interactions and questions as they complete the safety activity Formal assessment – analyzing student responses to the exit ticket
Lesson Sequence Evaluate: Warm Up Engage and Explain: Safety Video/Contract Explore: Science room safety tour Elaborate: Safety Challenge Evaluate: Exit Ticket
Warm Up The table below shows the measurements a student took of the volume of water in a graduated cylinder. The actual volume in the graduated cylinder was 14.7 ml. Were the students measurements: Accurate and precise Accurate and not precise Not accurate but precise Not precise and not accurate Explain your answer using the data provided TrialVolume (ml)
Objective Today I will be able to: Understand how to act safely in the science classroom Apply safety rules to scenarios in the classroom
Homework Signed Safety Contract Complete the “What not to do laboratory worksheet”
Agenda Warm Up Safety Video/Contract Science Safety Tour Safety Challenge Exit Ticket
me6Y Safety Video/Contract
Safety Activity Challenge Work in small groups to identify the what is wrong in the lab. Explain how it could be corrected. Be prepared to present it to the class. Review Safety Procedures in the classroom
Safety Poem Johnny was a chemist son But Johnny is no more What Johnny thought was H 2 O Was really H 2 SO 4 Moral of the story: Do not assume a clear, odorless liquid is water – poor Johnny
Final Thought on Safety If you talk or are not paying attention when the safety procedures are discussed before the lab, for your own safety, you will not be permitted to participate in the lab
Closure True or False Water is always added to acid Glass can be thrown away into the trashcan Metals cannot be disposed of in the sink Icebreaker If you have one million dollars that you had to spend in one day, what would you do, or buy? Would you rather be a pirate or a ninja?