Hi Hannah,
In general yes. How to select nonadjacent cells is here https://support.office.com/en-us/article/Select-cells-ranges-rows-or-columns-on-a-worksheet-23f64223...
Or you may create the graph directly on your data - start with any one and after that through Select data change your axis and series label on selection your need. By selecting as above, or better manually. e.g. for axis label that could be
=(Sheet1!$A$1:$A$10,Sheet1!$A$21:$A$30,Sheet1!$A$41:$A$50)
similar for series
