Ditch the Dirt

Ditch the Dirt is an exciting NEW STEM challenge for pupils aged 8-14 years. It 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

Ditch the Dirt can also be used by pupils to gain a CREST Award. More information is available on the CREST Awards section of our website

All the materials needed to run the challenge can be downloaded below. If you would like a FREE A2 poster that accompanies the challenge email us.

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.


A downloadable poster to support the challenge.

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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