Superbugs - A Numbers Game

If an E. coli cell starts dividing at 9:00, how many bacteria do you have after 4 hours?

If an E. coli cell starts dividing at 9:00, after how many hours do you have more bacteria than people who live in Wales?

If an E. coli cell starts dividing at 9:00, after how many hours do you have more bacteria than people in the whole world?

If an E. coli cell starts dividing at 9:00, after how many hours do you have more bacteria than grains of sand in all beaches and deserts in world?

An E. coli cell is only 2 micrometer long; this is 2 one-thousandth of a millimeter! If it starts dividing at 9:00 and all bacteria would form a perfect chain, after how many hours would this chain be as long as a grain of sand?

If an E. coli cell starts dividing at 9:00 and all bacteria would form a perfect chain, after how many hours would this chain be as tall as an elephant?

If an E. coli cell starts dividing at 9:00 and all bacteria would form a perfect chain, after how many hours would this chain be as long as the distance between Cardiff and London?

If an E. coli cell starts dividing at 9:00 and all bacteria would form a perfect chain, after how many hours would this chain reach the planet Neptune??

What school do you go to, and in which year group are you?