1. Tomoya H., Jenna G., Kelly D., and Leo R.
Everyone
Tomoya H., Jenna G., Kelly D., and Leo R.

2. Question:
What is the effect of the weight of the cap on the distance the cap travels?
Jenna

3. ❔Hypothesis❔
Our hypothesis is: The more the cap weighs the smaller the distance the cap will travel. We think this because the weight will make the cap heavier which we think means it won’t travel as far.
Tomoya

4. Controlled Variables:
The angle of the launcher
Place of the Launcher
The amount of alka seltzer tablets (1)
The amount of the seltzer (20ml)
The type of the liquid
Wind speed
Temperature of the liquid
Kelly

5. Manipulated Variable:
The manipulated variable is the weight of the cap.
Leo

6. Responding Variable:
The responding variable is the distance the cap travels.
Jenna

7. Alka seltzer tablets (1 per trial) Pennies Seltzer (20 ml)
Launcher
Alka seltzer tablets (1 per trial)
Pennies
Seltzer (20 ml)
Film Canister
Post-Its/Tape
Tape Measure
Duct tape/Double Sided Tape (If using tape)
Syringe
Small cup
Pen/Pencil
Data Table
Tomoya

8. Procedure:
8. Take one alka-seltzer tablet and carefully place it into the film canister that has the seltzer inside.
9. As quickly as you can, snap the film canister cap back onto the film canister.
10. Quickly put the film canister in the launcher and tighten the launcher by twisting the knob to the right.
11. Take cover, and watch the cap travel through the air. Use tape to show where the cap landed.
12. Repeat the steps adding one more penny to the cap each time using double sided tape
13. After , record your data in a data table or graph in feet and inch.
14. Repeat the steps adding one more penny to the cap each time using double sided tape.
1. Collect your launcher, alka seltzer tablets, pennies, seltzer, post its, tape measurer and double sided tape, and syringe.
2. Take the cap off the film canister and place it on your work surface.
3. With double sided tape, stick one penny on the cap of the canister, and set aside.
4. Set the angle of the launcher to 60°
5. Open the seltzer and pour it into a cup
6. Take the syringe and put 20 ml of seltzer into the syringe.
7. Apply pressure to the top of the syringe to release the seltzer into the film canister
Kelly

9. Data Table: 0 Pennies 581 cm 580 cm 555 cm 572 cm 1 Penny 697 cm
Manipulated Variable
Trial 1
Trial 2
Trial 3
Average
0 Pennies
581 cm
580 cm
555 cm
572 cm
1 Penny
697 cm
643 cm
499 cm
607 cm
2 Pennies
544 cm
573 cm
541 cm
552 cm
Leo

10. GRAPH
Jenna

11. Conclusion/Results:
We have concluded that when we added one penny to the cap, the weight was the most balanced out, thus making the cap shoot to a longer distance. When we used no pennies, the cap went a little less farther than the trials with one penny. When we used one penny it went the farthest, and at two pennies, the cap’s distance decreased. When we added the third penny, the cap lost balance during the flight.
Tomoya

12. Additional Questions:
Would the results be different if we used a different kind of liquid?
2. How does the type of coin affect the distance the cap travels?
3. Would the the flavor of the seltzer effect the distance the cap travels?
Leo

13. Sources: Image Source: https://pixabay.com/ Create a Graph: