Step-by-step explanation:
Writing- created first sytem of writing through hyrogliphs
Papyrus Sheets- early form of paper to write on (came from Papyrus plant)
Shipbuilding-Egyptians had to sue their water source as a travel source as well (Nile river) so thwy created ships which allowwed later people to create ships as well
Math- The Egyptian needed ded to have a system of understanding of mathematics and geometry to build the pyramids and other large buildings, which later came in handy in life since math is everywhere
Farming- (explanation in comments)