Why does a shooting star fly?
Zelko (9 years old):If it runs out of gas, how can it fly? It must be out of gas! ...
Ceyda (10 years old):I think that's rubbish about the gas. How is it supposed to get gas? Is there gas in the universe? It's not a living thing with feet and hands .... Is there a gas station in the universe? I think that's rubbish about the gas.
Katja Bödeker:But there is still a problem. How does it fly then?
Zelko:Well, I don't know how it can fly.