Tuesday, September 16th, 2025 (RED)

Objectives:

1. Students will be able to compare and contrast chemical and physical changes. 
2. Students will be able to classify a change as either chemical or physical.
             

Warm-Up: 

1. An irregularly shaped metal object with a mass of 75.0 g is placed into a graduated cylinder containing 34.7 mL of water. The water level rises to a volume of 43.1 mL. What kind of metal is the sample? 

(*See density values below*)

2. What would have been the final volume reading on the graduated cylinder if the metal sample had been Gold instead?

Gold = 19.30 g/mL

Silver = 10.49 g/mL

Bronze = 9.87 g/mL

Copper = 8.86 g/mL

Zinc = 7.13 g/mL

Nickel = 8.90 g/mL

3. Would the following changes result in a change in the composition (no longer the original substance) of a substance (yes or no): 

a. Melting  b. Hammering  c. Burning  d. Vaporizing  e. Rusting

Daily Plan:

1st Half of Class

1. Notes- Chemical Properties and Changes (Student)

                Chemical Properties and Changes (TEACHER)

                Chemical Properties and Changes (Lecture Video)

2. Activity- Chemical and Physical Changes Lab (collect data)

2nd Half of Class

3. Q and A Over Density of Metals Lab and Penny Density Lab

4. Go Over Density Practice 2

                   

5. Activity- Complete Density of Metals Lab (E.O.P.)

Homework:

1. Complete Penny Density Lab (E.O.P. 9/18)

2. Complete HWQ- Density 1 by midnight (9/18)

3. Complete Physical and Chemical Changes Lab (E.O.P. 9/22)

4. Complete HWQ- Density 2 by midnight (9/24)