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SciShow
Chemistry & Corpses: The Science of Bog Bodies
SciShow explains the chemistry, archaeology and history of bog bodies -- naturally mummified corpses (and other fun things!) that have been discovered in Europe's peat bogs.
Sophia Learning
Sophia: Negative Exponent Property for Exponents
This lesson will present the negative exponent property for exponents. Student watch a video tutorial and then take an online quiz.