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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Life skills
Breakthrough Junior Challenge
2019 Challenge
2019 Challenge — Regional champions
2019 Challenge — Regional champions
View the 2019 Breakthrough Junior Challenge regional champions.
Fate of the universe
Glucose metabolism
Entropy and spontaneity!
Quantum levitation
Boltzmann's entropy and arrow of time
The quark theory of hadrons
