Mrs. Earthworm is angry. She is fed up of being covered in mud and never being able to have a proper bath. She insists that her husband install a bathtub with running water.
The bathtub is easy to make. Mr. Earthworm finds an old flowerpot lying in the kitchen garden. He patches up the few holes and some gaps. And it's done!
The installation of running water at their home was quite another thing. The first attempt was with straws connected to the surface. But the flow was too weak and during heavy rains the mud rose obstructing the mouth of the pipes.
He improved his device by connecting a garden hose directly onto a drainpipe. The flow was absolutely satisfactory.
But this water was not suitable for Mrs. Earthworm. She finds that it had too much residue, is not clear enough and does not smell good.
There was another more important problem that dampened Mrs. Earthworm's craving for a bath - the temperature. The water is too cold!
Mr. Earthworm got back to work and added a filter and a handmade water heater. Now it's perfect. Mrs. Earthworm can finally relax in the bath that she so wanted.

License information: CC BY 4.0
MPAA: G
Go to source: https://freekidsbooks.org/wp-content/uploads/2019/12/Everyone-has-a-right-to-a-bath-STEM-FKB.pdf