Agenda Qualitative vs. Quantitative Lab Rules What do we do at the end of a lab? Emergencies Safety...
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Transcript of Agenda Qualitative vs. Quantitative Lab Rules What do we do at the end of a lab? Emergencies Safety...
AgendaQualitative vs. Quantitative Lab RulesWhat do we do at the end of a
lab?EmergenciesSafety Poster Activity
Qualitative vs. QuantitativeObservations
Qualitative = descriptive, tough to measure (the basketballs are orange)
Quantitative = measurable/numerical observations (there are 10 basketballs)
Science Safety Rules Preparing for the LabPerforming the LabEnd-of-Lab ProceduresSafety in the field
Preparing and Performing the LabRead, Read,
Read the procedures
Ask Questions
SymbolsPay AttentionFollow
instructions
End of LabClean – upTurn off and unplugDispose of any wastes per
teacher instructionsWash your hands
In the FieldAlways have a buddyFollow proceduresUse common sense
AccidentsNotify the teacherListen for instructions
What’s Wrong?
What Would You Do? 1. You accidentally knock over a glass container and it breaks on
the floor. 2. You accidentally spill a large amount of water on the floor. 3. You suddenly you begin to smell a “chemical” odor that gives you
a headache. 4. You hear the fire alarm while you are working in the lab. You are
wearing your goggles and are in the middle of the experiment. 5. While your lab partner has her lab goggles off, she gets some
liquid from the experiment in her eye. In each of the following situations, explain how or why the proper
safety procedures are not being followed. 6. Gina is thirsty. She rinses a beaker with water, refills it with
water, and takes a drink. 7. It is rather warm in the laboratory during a late spring day. Anna
slips off her shoes and walks barefoot to the sink to clean her glassware. 8. While washing glassware, Mike splashes some water on Evon. To
get even, Evon splashes him back. 9. During an experiment, Lindsey decides to mix two chemicals that
the lab procedure does not say to mix, because she is curious about what will happen.
SAFETY POSTER How can I be safe in the lab?
◦Picture (on computer paper)◦Poem ◦Song ◦Comic◦Each must have a key saying
Example “Be wise and protect your eyes”