ISSEA STEM 2018 Bottle Rocket Competition

DESCRIPTION: ISSEA competing schools may have up to two teams. Each team will construct and launch a high pressure, water fueled rocket, analyze the flight data, make improvements, relaunch and give a final reflection. The goal for the team is to hit a target approximately 100 meters away. The launch platform will be angled at approximately 60 degrees up from the ground, towards the target. Teams are allowed, but not required, to bring materials or pre-made fins and nose cones (see specifications below). However, teams must use the provided “tank” from the supervising school to ensure equity in fuel amount and pressure between teams. Scoring will include aspects related to: closeness to the target, flight data recording, flight analysis and rationale for changes to the initial design and launch parameters such as fuel amount, pressure and any other variables the team found relevant.

EVENT PARAMETERS:

CONSTRUCTION SPECIFICATIONS:

  1. Theoretical stable flight test: Data must be submitted to show the center of gravity (CoG) relative to the center of pressure (CoP). The CoG must be closer to the cone than the CoP. If the previous parameters are not met adjustments to the CoG and/or CoP must be made before attempting to launch.
  2. Centripetal Stable Flight Simulation Test: (CSFST)1) Attach a string at the CoG of the rocket; 2) Set the rocket on the ground in the opposite direction of flight and slowly lift by swinging the rocket in a circle; 3) If the rocket redirects itself in two revolutions, the rocket has passed the CSFST. If the rocket fails the CSFST adjustments must be made to the CoP and CoG to create a more stable rocket.
  3. Cranial Deformation Test:(CDT) 1) Have Volunteer A sit on the ground with their head 1 meter below the cone of the empty rocket held by Volunteer B; 2) Volunteer B releases the rocket, allowing the mass of the earth to accelerate the rocket towards the head of Volunteer A; 3) After impact of the rocket and Volunteer A’s head, inspect Volunteer A’s head for deformation or the release of hemoglobin containing fluids. Make appropriate adjustments to the cone to ensure the next CDT does not deform the cranium in any way. (Note: It is suggested materials be selected to ensure passing the test on trial 1!)
  4. Attachments to the fuel tank must be entirely from tape, no glues are allowed to touch the fuel tank since this might weaken the plastic and cause a rupture prior to take-off, leading to injury or emotional distress for the team.

 SUPPLIED MATERIALS:

DETAILS OF BOTTLE ROCKET COMPETITION:

SCORING:

Data Table for All Rockets Link


ISSEA STEM 2018 BOTTLE ROCKET CHALLENGE DATA SHEET 1

Present this sheet, completed on both sides,  to the judges no later than 15:30 12-April-2018

Bottle Rocket Challenge - School ______________________ Team #:___  Age Group:_________ Submission 1

Testing and Verification Section

Briefly explain how you found the Center of Gravity for your rocket:_________________________________

________________________________________________________________________________________

Briefly explain how you found the Center of Pressure for your rocket:_________________________________

________________________________________________________________________________________

Make a diagram of your rocket, with the nozzle to the left, and show the distances to the CoG and CoP.

Describe the results of your CSFT:

________________________________________________________________________________________

________________________________________________________________________________________

Describe the results of your CDT:

________________________________________________________________________________________

________________________________________________________________________________________

Verification of Passing (Judge’s signature):_______________________ from school:_______

Judges: Circle and initial the score for this team

0 Points

2 Points

6 Points

10 Points

Documentation was not submitted.

Significant errors have been made, or the rocket did not pass one or more of the CSFT or CDT.

Minor problems with documentation or presentation of the data or the process for determining the CoP or CoG was faulty.

All data is taken to an appropriate level of accuracy and is presented with units as needed. The CoG and CoP are appropriate for stable rocket flight and the CSFT and CDT have been passed

Pre-Launch 1 Checklist Section

Present this sheet, completed on both sides,  to the judges no later than 15:30 12-April-2018

Bottle Rocket Challenge - School ______________________ Team #:___  Age Group:_________Submission 1

Pre-Launch Checklist (Note, this data will need to be copied onto the Pre-Launch Data Settings form and handed to the judges before your first launch, and later prior to your second launch.)

Mass of Empty Rocket:_____  ___ Amount of Liquid Fuel:_____ ___ Pressure in PSI:_____  

 Launch Order:______ (assigned randomly by judges) Launch Pad (assigned by judges):  1  /  2  /  3

Score Awarded by Judge- Please circle and initial:  5: Completed    3: Partially completed   0: Not attempted.

All provided data for rockets and distances from target can be found here:

https://docs.google.com/spreadsheets/d/1HyUpSjC_vNAku5E9j9uruJlqIBqmkjScnw3EYFIGDFE/edit#gid=1450046628


Flight Data Section

Bottle Rocket Challenge - School ______________________ Team #:___  Age Group:_________Submission 2

Present this sheet, and any other additional pages for scoring, to the judges no later than 10:40 14-April-2018

In the space below and possibly using additional attached pages. Set up appropriate data tables with units for:

  1. The three test launches that will be launched.  
  2. Your first flight.
  3. Your final flight. Additional or separate pages may be submitted by the team, including data collection sheets made before the competition.

Judges: Circle and initial the score for this team

0 Points

3 Points

5 Points

The data sheet was not created.

A data collection sheet is presented, but some critical information is missing that will limit the teams’ ability to improve their next flight.

A reasonable data collection sheet has been presented with appropriate units..


Data Collection and Analysis Section

Bottle Rocket Challenge - School ______________________ Team #:___  Age Group:_________Submission 2

Present this sheet, and any other additional pages for scoring, to the judges no later than 10:40 14-April-2018

Data and analysis may be submitted in the space provided or on additional sheets as needed. Analysis may include data from other schools and teams.

Judges: Circle and initial the score for this team

0 Points

3 Points

5 Points

7 Points

10 Points

There was no data collection or analysis.

There was data collection, but there was not any analysis.

Some data is missing which interfered with the analysis of the launch.

Some analysis is either wrong or incomplete.

Data has been collected and analyzed in a mathematically age appropriate way (see below).

 Data Analysis Expectations:

Radius from landing to target in meters:______________    Judge’s initials:______

Launch 1 Points Calculation Section - Judges will announce the “MostAccurate” value for your calculations.

Points =  (TotalDistanceToTarget - RadiusTargetToLanding) / MostAccurate * 30    

Justification of Improvements Section

Bottle Rocket Challenge - School ______________________ Team #:___  Age Group:_________Submission 2

Present this sheet, and any other additional pages for scoring, to the judges no later than 10:40 14-April-2018

In the space below, describe the modifications you plan to make and present the data and scientific reasoning for your decisions. Modifications can include changes to:

Judges: Circle and initial the score for this team

0 Points

5 Points

10 Points

15 Points

20 Points

There is no documentation of changes made to the rocket.

None of the improvements have been linked to the data.

There is only one improvement that can be linked to the data.

At least three improvements have been made and data or analysis is clearly linked to at least two of the improvements.

At least three improvements have been made and data or analysis is clearly linked to the improvements.

Launch 2 Points Calculation Section

Pre-Launch 2 Checklist Section

Bottle Rocket Challenge - School ______________________ Team #:___  Age Group:_________

Pre-Launch Checklist (Note, this data will need to be copied onto the Pre-Launch Data Settings form and handed to the judges before your second launch.)

Mass of Empty Rocket:_____  ___ Amount of Liquid Fuel:_____ ___ Pressure in PSI:_____  

 Launch Order:______ (assigned randomly by judges) Launch Pad (assigned by judges):  1  /  2  /  3

Radius from landing to target in meters:______________    Judge’s initials:_____

Formula used for Final Launch

[(Distance to Target - Radius from target) / Distance to target] * 60

Final Reflections Section

Bottle Rocket Challenge - School ______________________ Team #:___  Age Group:_________ Submission 3

Present this sheet, and any other additional pages for scoring, to the judges no later than 17:15 14-April-2018

Teams may choose to submit a handwritten or printed reflection.

Judges: Circle and initial the score for this team

0 Points

10 Points

15 Points

20 Points

The reflection was not submitted.

The reflection does not include objective learnings, or it does not include subjective learnings.

Either the object or subjective learning experiences have been written in a “trivial” manner and do not clearly show new learnings.

The final reflection is between 150 and 300 words, and addresses both objective and subjective learning experiences. Objective being aspects of rocket engineering / launch requirements / improvements based on data and analysis; subjective being aspects of working with others / working as a group / personal growth of learning such as the need to persevere in light of failures, etc.