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 12Witch Craft WorksAnime
Up to EP 6Amagami SS+ Plus: Extra Episode+ PlusAnime
Up to EP 1The Secret World of ArriettyAnime
Up to EP 24Lucky☆StarAnime
Up to EP 12Lostorage Incited WIXOSSAnime
Up to EP 1K: Missing KingsAnime
Up to EP 12DIVE!!Anime
Up to EP 12Rinshi!! Ekoda-chanAnime
Up to EP 10Aratanari Fukaki AoAnime
Up to EP 24Heavy ObjectAnime
Up to EP 1Is It Wrong to Try to Pick Up Girls in a Dungeon?: Arrow of the OrionAnime
Up to EP 12King's GameAnime