Scroll In and Out (Zoom In and Out)

I have a website with a map. In this map I want to zoom out and zoom in with the scroll wheel. Is there any keyword for that case?
I only know ScrollToElement or ScrollToPosition but I can´t find ScrollIn or ScrollOut


what about the, not sure about that but try, if zoom in out are web elements

I have two Web Elements for ZommIn and ZoomOut but I would also like to test zoom in and out via mouse wheel.