This is super excellent: Howtoons by Saul Griffith, Nick Dragotta, and Joost Bonsen. What is it? It’s a DIY comic book to teach kids about science, engineering, art, and crafts: it contains how-to projects such as marshmallow shooter, turkey-baster flutes, and soda bottle submarine (above).

So wanna make a soda bottle submarine? You can print a downloadable PDF from the website (designed with help from Ryan McKinley and Phil Torrone):
Link