Lab%20Safety

1
Lab Safety
2

• 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

3
Lesson Sequence

• Evaluate Warm Up
• Engage and Explain Safety Video/Contract
• Explore Science room safety tour
• Elaborate Safety Challenge
• Evaluate Exit Ticket

4
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

Trial Volume (ml)
1 14.4
2 15.0
3 14.2
5
Objective

• Today I will be able to
• Understand how to act safely in the science
  classroom
• Apply safety rules to scenarios in the classroom

6
Homework

• Signed Safety Contract
• Complete the What not to do laboratory worksheet

7
Agenda

• Warm Up
• Safety Video/Contract
• Science Safety Tour
• Safety Challenge
• Exit Ticket

8
Safety Video/Contract

• https//www.youtube.com/watch?vXYbOSmYme6Y

9
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

10
Safety Poem

• Johnny was a chemist son
• But Johnny is no more
• What Johnny thought was H2O
• Was really H2SO4
• Moral of the story Do not assume a clear,
  odorless liquid is water poor Johnny ?

11
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

12
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?