Aim for the Top! Science Lesson

Overview:

The science lessons are short “omake” bonus features originally present on the first two volumes. 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.

(Source: Wikipedia)

AniWatch is the best site to watch Aim for the Top! Science Lesson SUB
online, or you can even watch Aim for the Top! Science Lesson DUB in HD
quality.

You can also find

Gainax

anime on AniWatch website.