Agenda Qualitative vs. Quantitative Lab Rules What do we do at the end of a lab? Emergencies Safety Poster Activity

Qualitative vs. Quantitative Observations Qualitative = descriptive, tough to measure (the basketballs are orange) Quantitative = measurable/numerical observations (there are 10 basketballs)

Science Safety Rules Preparing for the Lab Performing the Lab End-of-Lab Procedures Safety in the field

Preparing and Performing the Lab Read, Read, Read the procedures Ask Questions Symbols Pay Attention Follow instructions

End of Lab Clean – up Turn off and unplug Dispose of any wastes per teacher instructions Wash your hands

In the Field Always have a buddy Follow procedures Use common sense

Accidents Notify the teacher Listen 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”