Figure 1 CO2 Poppers & Figure 2 Piezo Poppers Questions & Investigations
	schmied©2010 all rights reserved

Figure 1: The CO2 Popper (100 pts)

a. (60 pts) Create a CQC Systems figure for this demonstration that shows:

i. A "cut away " drawing of the film can after the film can is sealed and as the film can ìblasts offî ..

ii. Use a proper key

iii. Track the matter and energy in the system.

iv. Tell if this is an open or closed system. Use examples to explain why

b. (40 pts) Answer each question in complete quality and correct sentences that reflect the question on a lined paper attached to the Figure.

1. (5 pts) Tell what is in the film can at the start of the investigation.

2. (5 pts) Describe the relative inside temperature of the film can immediately after the demonstration.

3. (5 pts) Where does the energy come from to cause the dry ice to change state to gas?

4. (5 pts) Name the phase change the dry ice made.

5. (5 pts) Explain why the Dry ice (CO2 solid) in the can caused the cover to come off violently.

6. (5 pts) Tell if the CO2 popper demonstrates a physical or a chemical change AND explain why?

7. (5 pts) What type of energy, kinetic or potential, is shown when the bottom of the can blasts off?

8. (5 pts) What type of energy, kinetic or potential does the Dry Ice possess as a solid?

 

Figure 2: The Piezo Popper (110 pts)

a. (55 pts) Create a CQC Systems figure for this demonstration that shows:

i. A "cut away" drawing of the inside of the film can after the film can is sealed and as the film can ìblasts offî ..

ii. Use a proper key

iii. Track the matter and energy in the system.

iv. Tell if this is an open or closed system. Use examples to explain why

b. (50 pts) Answer each question in complete quality and correct sentences that reflect the question on a lined paper attached to the Figure.

1. (5 pts) Tell which substances are inside the film can when the lid is sealed.

2. (5 pts) Describe the relative inside temperature of the film can immediately after the demonstration.

3. (5 pts) Explain where the energy comes from to start the reaction?

4. (5 pts) Where does the energy come from after the piezo popper makes a spark

5. (5 pts) Completely write out the reaction that occurred inside the film can. (Should be in notes!)

6. (5 pts) Describe why the bottom of the film can was violently pushed off the top.

7. (5 pts) Tell if the Piezo Popper demonstrates a physical or a chemical change AND explain WHY.

8. (10 pts) What type of energy , kinetic or potential, does the ethanol possess:

a. Before the spark? b. After the spark

9. (5 pts) What type of energy occurs when the igniter is pressed?

 

Matter and Change of State Project Page Home

© 2010 John Schmied all rights reserved