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Launch your own horizontal rocket with the power of air pressure

Suitable For

Grade 3



Time Required

 <24 Hours



What’s it about?

The human fascination with space travel has existed for many centuries and in 1969, Neil Armstrong became the first human being to set foot on the moon! It takes a lot of energy to break through the earth’s gravitational force and the atmosphere to outer space. A rocket is a very powerful machine which obtains ‘thrust’ or ‘propulsion’ by ejecting a jet of fast moving fluid exhaust from its engine, and is used to travel from the earth out to space. Let us explore how rockets work with this simple science experiment:

Topics covered

Rocket, Propulsion, Isaac Newton

What will I need?

  • 2x CHAIRS

Procedure (Method)

Unfortunately, this section is only available in the e-book version of the project.

How does it work?

Unfortunately, this section is only available in the e-book version of the project.

This science experiment works according to Newton’s ‘Law of reaction’. The force or ‘action’ of the compressed air going backwards, sets up an equal force or ‘reaction’ going forwards. As the air in the balloon is released, the air will spurt out of the small hole in the balloon and your rocket will shoot forwards. This will carry on until the air in the balloon runs out.

Like the sound of it?

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