The definition of igneous, sedimentary, and metamorphic rocks and the processes that create them. Crust, mantle, inner core, outer core, nickel-iron. Oh be a fine girl, kiss me. Extrusions. Lava flows. Old river beds. Formations. How mountain chains are created.
Human biological systems, the broad category divisions (skeletal, reproductive, endocrine, circulatory, respiratory, digestive, etc) and how they work
Phonics for English language, general rules for pronunciation of unknown English words, etc
Basic geography: the continents, the oceans, the major river systems and mountain ranges.
Basic meteorology: trophosphere, ionosphere, stratosphere, cirrus versus cumulus versus nimbus versus stratus clouds, major wind patterns, low pressure and high pressure and rain and all that
Basic astronomy: the planets, elliptical orbits and tilted axis and seasons, 93 million miles to the sun, how eclipses work, the sun orbiting the galactic center; and history of astronomy (Galileo, etc)
History in general, such as it was. Way more focused on leaders & rulers and wars than how people lived, and politically slanted at times, certainly focused on “OUR people” but not fundamentally WRONG for all that. Greece, Rome, Middle Ages, the Renaissance, the Reformation, Industrial Age. Anglo-Saxons, William the Conqueror, Magna Carta, the rise of Parliament. Christopher Columbus, Pizarro, de Anza, Cortez, Roanoke Colony, Plymouth Rock. French and Indian War. Boston Tea Party. Declaration of Independence. Revolutionary War. Continental Congress. Yadda yadda.
Elements. Periodic table. Marie Curie and Radium. Roentgen and the X-ray. The rise of chemistry.
American Gov. Bicameral legislature. Checks and balances. Reading the Constitution. The rise of political parties. Direct election of Senators. Black vote, women’s vote. Process of amending the Constitution.
Paleozoic, Mesozoic, Cenozoic. Animal and plant origins and a broad overview of life in the Cambrian, Silurian, Devonian, Pennsylvanian, Mississipian, Permian, Triassic, Jurassic, Cretaceous, etc. Dinosaurs. The rise of mammals. Eohippus Merychippus and all the other horse ancestors. Early man. OK some of this would now be corrected but in broad terms it was mostly correct.