Volcano Challenge

Overview

The Volcano Challenge explores how the baking soda and vinegar reaction is affected by variations of mixtures and the effect of a 3D printed nozzle. Players will be challenged to find the perfect combinations of baking soda, vinegar, and water to obtain the highest eruption! The challenge is great for outdoors, but can be run indoors also with the aid of a test chamber. This challenge is great for all ages.

Relevant STEM Principles

Chemical Reactions

Challenge Designer Recognition

We want to acknowledge the University of Kentucky, Lexington’s Chemical Engineering Student – Ryan Macy for this Challenge Design! GO WILDCATS!

UK%20Logo

STEP 1: Pick Outcome Type

The outcome for this challenge is always height. But we suggest two unique ways to play.

Less Serious Challenge

For younger audiences, let them shoot for the moon!

  1. See how high they can get the reaction to go.
  2. You will need a large space, eruptions can go over 20 ft high
  3. Also consider that vinegar is a substance that you should make sure is safe for the local environment and player are not exposed to the fall out.
  4. Always wear safety glasses and gloves!!

More Serious Challenge

For a more serious challenge, set a specific height to be achieved.

  1. This forces players to learn to control the reaction.
  2. This also supports moving the activity indoors.
  3. Eruptions in the 5-8ft range are good goals.
  4. A test chamber is recommended, see DIY resources below.
STEP 2: Pick Challenge Type

The Volcano Challenge studies the interaction of the following design parameters:

  • Volume of Vinegar (ml)
  • Volume of Water (ml)
  • Volume of Baking Soda (ml)
  • Nozzle Shape

The Nozzle has three parameters that can be adjusted

  • Outlet Diameter
  • Inlet Diameter
  • Height

Toggle Item

  • Formulation
    • Can you have too much baking soda?
    • Do different types of vinegar affect the results?
    • How does water affect the results?
  • Nozzle
    • What style of nozzle produces the best eruption?
    • Does a restrictive nozzle help or hurt the reaction?
  • Environmental
    • How does temperature affect this reaction?
    • Does injecting the vinegar slowly change the results?

Challenge Types

Nozzle Type

This Challenge uses four predefined Nozzle Configurations

  • All of the volcano parts can be printed in advance
  • Participants select from four nozzle configurations

How To Play
  1. Login to Rippl3D Challenge site
    1. Select the Competition for your event
    2. Select the parameters you want to test
    3. Save the design and record the Job Number on the Job Sheet
  2. Pick the selected nozzle configuration from the pre printed nozzles
  3. Prepare Chemicals
    1. Safety
      1. Glasses & gloves
    2. Using 50ml Centrifuge Tube
      1. Measure out desired water
      2. Add desired baking soda
    3. Using 20ml Syringe
      1. Measure out desired vinegar
  4. Go to Test Chamber
  5. Load Test Chamber
    1. Insert nozzle into test chamber cap
    2. Mix contents of 50ml Centrifuge tube well and pour into test chamber tube
    3. Connect 20ml syringe to test chamber tube
  6. Eruption – Typically done by Competition Coordinator or Mentor
    1. Announce the eruption is imminent
      1. Have spectators help judge the eruption height
      2. This can be subjective and is helpful to get a group consensus
    2. Make sure area is clear
    3. Inject vinegar into test chamber
  7. Record results on job sheet
  8. The Competition Coordinator will enter the score for your job number
  9. Review the results and try again to improve your score

Nozzle Design

How To Play
  1. Login to Rippl3D Challenge site
    1. Select the Competition for your event
    2. Select the parameters you want to test
    3. Save the design and record the Job Number on the Job Sheet
  2. Download Nozzle STL file
  3. 3D Print the Nozzle Design
  4. Prepare Chemicals
    1. Safety
      1. Glasses & gloves
    2. Using 50ml Centrifuge Tube
      1. Measure out desired water
      2. Add desired baking soda
    3. Using 20ml Syringe
      1. Measure out desired vinegar
  5. Go to Test Chamber
  6. Load Test Chamber
    1. Insert nozzle into test chamber cap
    2. Mix contents of 50ml Centrifuge tube well and pour into test chamber tube
    3. Connect 20ml syringe to test chamber tube
  7. Eruption – Typically done by Competition Coordinator or Mentor
    1. Announce the eruption is imminent
      1. Have spectators help judge the eruption height
      2. This can be subjective and is helpful to get a group consensus
    2. Make sure area is clear
    3. Inject vinegar into test chamber
  8. Record results on job sheet
  9. The Competition Coordinator will enter the score for your job number
  10. Review the results and try again to improve your score


Resources

Job Sheet

Coming soon

Pre Printed Rocket Part STLs

Coming soon

Competition Prep Sheet

Coming soon