The Science of Hot Air Balloons: How Do They Stay Airborne?

The video discusses the first hot air balloon flight in 1783 by the Montgolfier brothers, who tested the balloon's safety with animals. It explains the science behind how hot air balloons rise due to heated air being less dense than cold air. The video also covers the history of sky lanterns in China, which used similar principles to fly.

Who were the inventors behind the first hot air balloon flight?

• Joseph and Eddie Montgolfier

• The Wright Brothers

• The Lumière Brothers

• Leonardo da Vinci

What animals were used in the first hot air balloon test flight?

• A monkey, a parrot, and a goat

• A cat, a dog, and a rabbit

• A horse, a cow, and a pig

• A sheep, a duck, and a rooster

Why does hot air rise?

• Because it is quieter than cold air

• Because it is more colorful than cold air

• Because it is less dense than cold air

• Because it is heavier than cold air

What is a key factor that allows hot air balloons to stay airborne?

• The density of the heated air

• The color of the balloon

• The shape of the balloon

• The weight of the basket

What material were traditional sky lanterns made from?

• Wood and fabric

• Oiled rice paper and bamboo

• Glass and steel

• Plastic and metal