Online resources including Mesopotamia.co.uk, Eduplace.com and Wikipedia.org provide information to read about ancient Mesopotamian geography. These resources are free to use and are written in a way that is accessible and educational for both adults and children.
Mesopotamia.co.uk features basic geographical information about Mesopotamia including topography, natural resources and waterways. The site also contains links to maps as well as a linked story to help readers contextualize the information.
Eduplace.com features a downloadable, printable PDF with facts and essential questions. The documents are oriented towards teachers, but the information is also useful to casual readers and children. Wikipedia.org contains a wealth of information related to Upper and Lower Mesopotamia plus extensive amounts of information related to irrigation and ancient canals.