The term 'zoom in' means to enlarge an image or document so that it becomes easier to work on. You can see less of the document on the screen at any one time but the area that you can see is larger and clearer.
The term 'zoom out' means to decrease the size of an image or document on the screen so that you can see less detail but you can see more of the overall item.
Challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: zoom