Kezako. A video series that answers the science questions your students ask

Last updated on 12 May 2026

Kezako is a platform that offers a series of videos that try to answer the questions of everyday life under the prism of science. Mathematics, physics, chemistry, computer science, life sciences and earth sciences, sciences answer questions that we do not always know how to answer.

And why does the soap foam?
Why when you drop your toast? Why is it that the buttered side falls on the tile every time?

A playful approach to science

Kezako offers a playful approach to science through dozens of short videos with a light and offbeat tone that are particularly successful.

This truly quality series is produced by Unisciel, the University of Online Sciences, and the University of Lille.

On the Kezako website you will therefore find more than a hundred videos to project or offer to your students. Can we walk on water? How does a hard drive work? Why do magnets stick to fridges? Each video takes about ten minutes and provides answers given by science to everyday questions.

The tone is light with a touch of humor and playful little animations punctuate each video. But do not rely on appearances, the statement is nevertheless serious and argued. Videos are real educational tools.

One example among dozens of others: Why can a cat fall from several floors without hurting itself?

Kezako offers you a search engine to find the right video. The site seems a bit dormant and that is a shame. A quiz section offers only three questionnaires and some sections seem a little neglected.

This does not detract from the quality of this whole beautiful series of videos. They would benefit from being accompanied by a text transcript directly on the website.

If you are looking forother science resources, here.