1. Chemical and Physical Changes Lab

2. Common Core Connection
Objective
Today I will be able to:
Differentiate between a physical and chemical change by recording observations in the lab
Informal assessment – monitoring group interactions as they complete the lab
Formal assessment – analyzing student responses to the exit ticket and lab questions
Common Core Connection
Value Evidence
Reason abstractly and quantitatively
Use appropriate tools strategically

3. Lesson Sequence Evaluate: Warm-Up Explain: Lab Safety
Explore/Elaborate: Chemical and Physical Changes Lab
Evaluate: Exit Ticket

4. Warm - Up
What is the difference between a physical and chemical change?
What evidence of a chemical change will I look for in the lab today?

5. Objective Today I will be able to:
Differentiate between a physical and chemical change by recording observations in the lab

6. Homework
Finish answering lab questions
STEM Fair Due October 10

7. Agenda Warm-Up Lab Safety Chemical and Physical Changes Lab
Exit Ticket

8. Chemical and Physical Changes Lab
Ms. Ose will assign lab groups today

9. Lab Safety – Lab Preview
Closed toe shoes, goggles, aprons must be worn to participate
Hair must be tied back
Review Bunsen burner safety
In step 3, DO NOT stare directly into the light
HCl, sodium chromate and barium nitrate are in a low concentration, if you spill it just rinse it off of your skin in a sink
Dispose of all chemicals in the waste container, DO NOT pour directly down the sink
When you finish, return the lab area to its original state and begin working on the lab questions

10. Exit Ticket
On the board, write the experiment that you had the most difficult time determining whether it was a chemical or physical change