Screen magnification is a function of some technologies which allow for viewing items at larger sizes, which can make digital material easier to see. In Google Chrome, screen magnification can take many forms. A user can usually zoom in by stretching two fingers across a touchscreen, but there are other ways too including the following:

• Simultaneously press Ctrl and the + key (or – key to reduce the zoom level) to magnify within the browser. Press the + key repeatedly to increase the magnification
• Simultaneously press Ctrl + Shift + the + key to magnify everything, including the controls of the browser itself.
• Enable Full Screen Magnifier in Chromebook Accessibility Features
• Enable Docked Screen Magnifier in the Chromebook Accessibility Features.

The video below titled How to Use Screen Magnification on Your Chromebook provides additional demonstration and explanation of these accessibility features.