Black Sand at Ocean BeachI Science in the City I Exploratorium
2,982 views · Published 9 August 2011 · 3:53 · Indexed 4 November 2026
Channel: Exploratorium · 2011 · Education
Join Exploratorium educator, Ken Finn as he unlocks the mystery behind the black sand at Ocean Beach.This piece explores the origin of magnetite in the Sierra Nevada Mtns, it's journey down the Colorado and San Joaquin rivers to the Bay and the interesting physical properties of this mineral. Watch the Exploratorium's complete Science in the City series at http://www.exploratorium.edu/scienceinthecity
