Product No.: 019136

 

A hot air balloon 190 cm high and 140 in diameter (440 cm 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 floats 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 has taken quiet 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.