What is the difference between aluminum and aluminium?

What is the difference between aluminum and aluminium?

The word aluminum is a noun. Aluminum is a type of metal that is useful in a variety of applications because it is lightweight, resistant to corrosion, and excellent at conducting heat.

Here are some examples of aluminum in sentences,

Aluminum conducts electricity but not as well as silver, copper, or gold.
Kyle used aluminum baseball bats when he was young, but as he grew older, he switched to bats hewn of ash.
My cookware has a layer of aluminum bonded between layers of stainless steel, so that food heats more evenly.
One of the world’s largest aluminum stockpiles, which until a few months ago was stored under hay and plastic tarp in a Mexican desert, has been moved to a remote port here in southern Vietnam

Aluminium is the British English word for the same metal. The following chart compares usage of aluminium vs. aluminum in British English works published since 1800,

aluminum versus aluminium

Even though this chart isn’t scientific or exactingly accurate, it can still illustrate a long-term usage trend.

These sentences illustrate the British English aluminium,

“Bloody hell, Commerford, stop using that silly Italian pot; the coffee tastes like aluminium!” said Wilshire.
“Is the faucet made of aluminium, or stainless steel?” asked Bronwyn.
Velar is based on the same fundamental aluminium components as its sister car, as is common in the industry these days; just one of the revolutions the TT kicked-off nearly 20 years ago. –The Telegraph