Ditch the Dirt

Ditch the Dirt is an exciting NEW STEM challenge for pupils aged 8-14 years. This classroom activity enables pupils to investigate ways of making dirty water cleaner through sieving and filtering and can also be used to explore ways of making water safe to drink.

Set in Turkana in Kenya where for two out of three people do not have access to clean drinking water, Ditch the Dirt offers a;

  •  Real life global context to explore water quality, sieving and filtering investigations
  •  Perfect challenge to deliver parts of the science, D&T & maths curricula
  •  Great activity for a science or STEM club, transition or enrichment day

Teacher resources include a lesson plan, pupil worksheets, PowerPoint, posters, certificates and more.

Accredited by the British Science Association this activity can be used to gain a CREST Discovery award (primary and secondary), and a CREST SuperStar award (primary). For more information please go to the CREST area of our website.

POSTER For a free Ditch the Dirt challenge poster, download from below or email us for a free copy.


Teacher's notes

All the information you need to guide you through the challenge.

Pupil activity sheets

All the pupil worksheets for the challenge.

Well Done Certificates

For taking part in the challenge.

CREST Discovery Award Passport

An example of the passport pupils need to complete if entering for a Discovery Award.


A presentation to support teachers run the challenge.


Dish the dirt poster with GIG logos

Congratulations cerficates

For the team who filter the cleanest water.

Ditch the Dirt is part of the Girls into Global STEM (GIGS) project aiming to engage pupils, especially girls in STEM subjects. For further information go to GIGS.



A full set of photographs used in Ditch the Dirt are available to download from FlickR.

For further case studies and downloadable technical information on Practical Action's work on Water and Sanitation projects.

Technical briefs and information on WASH projects, including water filters.

Case studies from international WASH projects, including the solar water pump project in Turkana, Kenya.

Video clips from international projects including Practical Action's Dying For A Drink video clip from Turkana.

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