Nasir and Nadir are making a robot for their school's junk model competition. They must use garbage that can be recycled. So just what can they use, and what will happen to the garbage they throw away? Follow their story to find out why we should use less plastic, what happens at landfill sites, and how we can reduce, reuse, and recycle.

Includes index. First published in Great Britain in 2019 by Wayland.