Here is a different wheel: six plastic spoons set round a cork, on a straw.

A spoon water wheel: six spoons round a cork, on a straw.

Here is a real spoon water wheel.

Miss Torres pours water from a jug onto the spoons.

The moving water pushes on the spoons, so the wheel turns.

The moving water pushes on the spoons, so the wheel turns.

Here is a real jug pouring water onto a spoon wheel.

But in a bowl of still water, the still water does not push the spoons round, so the wheel stays still.

Still water does not push the spoons round, so the wheel stays still.