CosmicFlow Archives More archives This is an independent, non-commercial index. It is not affiliated with, endorsed by or connected to Crash Course Kids, Crash Course or Complexly. Titles, thumbnails and videos belong to their owners and play from YouTube; nothing is hosted or re-uploaded here. The channel is written for 5th grade science; lessons are placed on both the 4th and 5th grade rungs here, following the channel's own course playlists, and may not match every curriculum. Views and dates are as reported by YouTube when the index was last refreshed. Stills are frames from lessons published by the official Crash Course Kids channel; they belong to their owners.
Found a lesson that is missing, in the wrong grade or gone? This index is maintained independently and depends on families like yours.
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This is not a way to reach Crash Course Kids. Updated 22 Sept 2026 Built with Next.js. Open to corrections. Sitemap 
