Identify and explain the significance of each item below.

utilitarianism (p. 720)

germ theory (p. 723)

labor aristocracy (p. 729)

sweated industries (p. 732)

companionate marriage (p. 734)

separate spheres (p. 737)

suffrage movement (p. 741)

thermodynamics (p. 743)

Second Industrial Revolution (p. 743)

evolution (p. 745)

Social Darwinism (p. 745)

realism (p. 747)