DAD: Why does the shower get me clean?
DAD: Because the water washes the dirt away when I use soap.
DAD: Why do the molecules have a hydrophilic head and a hydrophobic tail?
DAD: Because the C-O bonds in the head are highly polar, and the C-H bonds in the tail are effectively non-polar.
DAD: Because while carbon and hydrogen have almost the same electronegativity, oxygen is far more electronegative, thereby polarizing the C-O bonds.