<ol>
<li><p>The courses are generally “mechanics” related. You learn about the forces and stresses in steel, concrete, water soils and how to design structures based on these fundamentals. There’s typically a course in traffic engineering and environmental engineering as well in the core civil engineering curriculum.</p></li>
<li><p>Typically physics and chemistry. I took 2 chem courses plus lab, and 3 physics courses plus lab.</p></li>
<li><p>Pretty much everything involves something microscopic in one way or another. ChemE and EE are obvious. In mechE and civE, you have to deal with stress and strain and forces, which are of course invisible.</p></li>
</ol>