Inventioneers
Epic

Atlas
ShapeQuest
Wonderopolis
YouTube Kids
Nick jr
White Tiles 4

Dictionary

iFormula

Khan Academy

AP Flashcards (free on Android)

SAT Vocabulary Flashcards

Magoosh SAT Prep: Math, Writing & Reading

3D Simulator & Stain Tool

Molecules

Smithsonian Channel

U.S. History

Mindsnacks (foreign language)

SAT Vocabulary Mindsnacks