If you want to insert images, figures, etc., we recommend .png or .tiff files, with a resolution in the 200-600 dpi range. Most diagramming applications will export files in these formats and within that range, by default.
On the Insert Ribbon, in the Illustrations Group, select the type of object you want to insert, navigate to the file (if appropriate) and click Insert or OK. If you've saved a figure from ChemDraw as a .png file, for example, you'll select Picture, then Picture from File..., and select your file.
The Charts icon () will allow you to enter data and create a new chart within Word.
You can also use the Screenshot tool take a picture of any open window (Available Windows gallery) or part of the screen (Screen Clipping).
Once an image is inserted, the Format Ribbon will appear, displaying editing and Text Wrapping tools.
Rackham guidelines say to not wrap text on the left and right of the image. In the Text Wrapping, be sure to choose either In Line with Text or Top and Bottom. Depending on what you choose, when you add a caption, the caption may end up in its own textbox.