History
Assassination of JFK by History.com
Science
The Electromagnetic Spectrum by The Science Channel
Math
Math Shorts Episode 10 – Absolute Value
English
Grammar Bytes! :: The Linking Verb
Latin
The Third Declension by latintutorial
Geography
Paraguay | history – geography | Britannica.com
Uruguay | history – geography | Britannica.com
Brazil | history – geography | Britannica.com
Rio de Janeiro | Brazil | Britannica.com
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