Make Your Own Hot Air Balloon

    

A hot air balloon 190cm high and 140in diameter ( 440cm in circumference) is glued together from tissue paper some of which is flame resistant.

An experiment with warm air, as this is lighter as the surrounding air, it rises, taking our balloon with it. When the air cools the balloon slowly falls to earth again. The aluminium bowl is filled with methylated spirits and this is lit to provide the lift, however this does not fly with the balloon for security reasons. The balloon remains in the air for about 5 minutes then gently returns to the ground, this allows the reuse of the balloon which takes some time and effort to assemble.

Contents:

• Tissue paper,
• flame resistant tissue paper,
• wooden rods,
• rubber tubing,
• glue,
• cutting pattern and
• instructions.
   

From 14 years, a colourful and functional learning object.