Litter left on beaches, washed into rivers or thrown overboard from boats not only makes the marine environment look unpleasant, it kills thousands of marine animals every year, usually by ingestion, entanglement or smothering.

Balloons and sky lanterns may look pretty while they are going up, but when they come down as litter they pose a real danger to marine life, particularly sea birds who can become entangled in the string, and turtles who may ingest balloons mistaking them for food. Learn  with your class why the 'Don’t Let Go' campaign is essential to help reduce their impact in your area.

A lesson inspired by Turkana in Kenya where for two out of three people do not have access to clean drinking water. Ditch the Dirt is part of the Girls into Global STEM (GIGS) project aiming to engage pupils, especially girls in STEM subjects.