If data exists, copy multiple cells into one cell

Excel 2010. I have several cells on sheet 1 that may or may not contain text. If they do, I want to copy that data from the group of cells into a single cell on sheet 2, with line delimination. So on sheet 2 the cell will read as follows.
INCLUDES: (the word includes is prepopulated, the text as outlined below to follow)
(text of sheet 1 cell A5)
(text of sheet 1 cell A6)
(text of sheet 1 cell A7)

This would continue only if the cells have text in them. If they are blank, then nothing is copied.