The science lessons are short "omake" bonus features originally present on the first two volumes of the original release. Each short lasts around two minutes, and stars super deformed versions of Noriko, Kazumi and the Coach explaining the various scientific aspects of the series.
Up to EP 50Aikatsu Friends!Anime
Up to EP 2Amagami SS+ Plus Picture DramaAnime
Up to EP 1Tales from EarthseaAnime
Up to EP 2Terra Formars: Earth-henAnime
Up to EP 1Shin Koihime†Musou: Live RevolutionAnime
Up to EP 13KAnime
Up to EP 52Captain FutureAnime
Up to EP 12Rainy Cocoa: Side GAnime
Up to EP 1Koukyoushihen Eureka Seven: Pocket ga Niji de IppaiAnime
Up to EP 1When Marnie Was ThereAnime
Up to EP 69Yakitate!! JapanAnime
Up to EP 13Yumekui MerryAnime