My kids could do a lot of this, and they’re tiny.
Kids memorize. Giving them “surveys” is fun, but it’s educationally a waste of time.
http://www.classicalconversations.com/Foundations.htm
This year we learned what happened in 24 different time periods in American History, 24 English grammar rules (such as: “An Infinitive is “to” added to a verb used as a noun, adjective or adverb”, 180 timeline facts in order from “Creation” to “Modern America”, times tables to 15x15 and other math rules (like the area of a triangle, circle, square, and rectangle, associative law, commutative law, etc.), the U.S. states and capitals along with U.S. mountains, rivers, canals, bays, and other prominent features. and all the Latin grammar required to recite John 1:1-7 in said language. We also learned grammar rules for Latin and 24 science facts (such as: Q: What is your endocrine system? A: glands and organs that use hormones to send messages through the bloodstream to the rest of your body”.
Many of the 9-year-olds have it mastered.
Oh, and of course they also know the U.S. Presidents in order, the Preamble to the Constitution, and the Bill of Rights.