Hot air balloons work because hot air rises. By heating the air inside the balloon with the burner, it becomes lighter than the cooler air on the outside. This causes the balloon to float upwards, as if it were in water. Obviously, if the air is allowed to cools, the balloon begins to slowly come down.
Find out how hot air balloons work by crafting your own and watching it fly up, up and away.
An explorer, adventurer and TV presenter, Dwayne's been seen in BAFTA nominated Channel 5 series Race to the Pole, on BBC Springwatch, Countryfile, National Geographic and Disney+.
Find out more