Reflection: Developing a Conceptual Understanding Hydrogen Balloon Explosion Demonstration - Section 3: Demonstration


There is some purposeful design in how I go about presenting this information that teachers need to understand. Youtube is full of examples of this reaction which uses toilet bowl cleaner and aluminum foil - both easy to obtain.

I never reveal this to any of my students. I have no control over what they independently search on the web, but I am careful to never encourage looking for this specific reaction. I also keep the hydrogen balloon small in order to contain it and prevent it from flying away, at the expense of introducing a misconception that hydrogen is a heavy gas that cannot float.

  Purposeful Design
  Developing a Conceptual Understanding: Purposeful Design
Loading resource...

Hydrogen Balloon Explosion Demonstration

Unit 5: Chemical Reactions
Lesson 3 of 11

Objective: Students will be able to observe a chemical reaction, specifically bond breaking/forming, involving removing hydrogen gas from hydrochloric acid, capturing the hydrogen in a balloon and causing the balloon to explode.

Big Idea: What better way to observe the breaking and forming of chemical bonds than with an explosive hydrogen balloon.

  Print Lesson
5 teachers like this lesson
  50 minutes
h2 explosion photo
Similar Lessons
Decomposing Sucrose
7th Grade Science » Chemistry
Big Idea: Sugar is carbon and water?
Hope, IN
Environment: Rural
Deborah Gaff
What is Conservation of Matter?
6th Grade Science » Chemistry and Cooking
Big Idea: In a chemical process, the atoms that make up the original substances are not created or destroyed, but rather regrouped into different molecules. The total number of each atom is conserved, or remains constant.
Scottsdale, AZ
Environment: Suburban
Melodie Brewer
Balancing Equations
8th Grade Science » Chemistry
Big Idea: In this differentiated lesson, students review key concepts regarding the Law of Conservation of Mass and use manipulatives and technology to assist in balancing equations.
Monticello, IL
Environment: Rural
Jennifer Smith
Something went wrong. See details for more info
Nothing to upload