1. Chem vs. Phys Change Mentos and Coke

2. Common Core Connection
Objective
Today I will be able to:
Construct an effective argument by watching a demonstration
Differentiate between a chemical and physical change
Informal assessment – monitoring student interactions and questions as they complete the practice and construct their arguments.
Formal assessment – analyze student responses to the exit ticket, argument writing and practice
Common Core Connection
Build Strong Content Knowledge
Reason abstractly and quantitatively

3. Lesson Sequence Evaluate: Warm Up
Elaborate: Chemical vs. Physical Changes Practice
Engage: Mentos and Coke Demonstration
Elaborate: Argument Writing
Evaluate: Exit Ticket

4. Warm-Up
28.50 g of iron shot is added to a graduated cylinder containing 45.5 ml of water. The water level rises to the 49.1 ml mark. From this information, calculate the density of the iron.

5. Objective Today I will be able to:
Construct an effective argument by watching a demonstration
Differentiate between a chemical and physical change

6. Homework
Matter Quiz Wednesday September 24
STEM Fair Due October 10

7. Agenda Warm Up Collect Lab Physical and Chemical Changes Practice
Mentos and Coke Argument Writing
Exit Ticket

8. What questions do you have about the lab?
Collect Lab
What questions do you have about the lab?

9. Chemical and Physical Changes Practice
Complete the practice at your desk. We will review the responses as a class

10. Mentos and Coke Demo

11. How to Construct an Effective Argument
State a claim
Use evidence to back up your claim
Create a counterclaim with evidence
Use specific examples!

12. Exit Ticket Draw a sample that has two elements and two compounds.
Does your picture represent a pure substance or a mixture?