Video · The Replication Crisis: Crash Course Statistics #31 TwitterShare on Facebook92 19 325 views Crash Course - September 26, 2018 Science Crash Course More Videos How Water Shapes the Land: Crash Course Geology #9 Science · 19 hours ago How Water Shapes the Land: Crash Course Geology #9 Science · 19 hours ago Myths About Diamonds: Crash Course Geology #8 Science · 1 week ago How Do Gems Form?: Crash Course Geology #7 Science · 2 weeks ago How Do Gems Form?: Crash Course Geology #7 Science · 2 weeks ago A Message From Hank Green Science · 3 weeks ago Where do rocks come from?: Crash Course Geology #6 Science · May 21, 2026 How Do Minerals Form?: Crash Course Geology #5 Science · May 14, 2026
