CLEAPSS Supporting practical science and technology
Welcome to the new CLEAPSS Science Website
CLEAPSS resources give teachers ideas for exciting and engaging practical activities that fire pupils' imaginations and then, unlike many other sources of ideas, go on to show teachers and technicians in detail how to translate the ideas into safe and exciting experiences in the classroom.
CLEAPSS advice and documentation is recognised by the Health and Safety Executive and the Department for Education.
Flaming Bob Worley

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Latest news from CLEAPSS..
Check your 2,4-DNP2 Nov 2016
Schools who hold stocks of 2,4-DNP (2,4-dinitrophenylhydrazine, technically called 2,4-DNPH) are reminded to check the storage arrangements for this chemical are as per Hazcard 30

If it has been stored as advised, or is unopened as supplied (as it contains water for supply) there is no cause for concern. 

However if there is no water in the outer container or the reagent bottle has not been placed inside an additional container you must assume that the material has dried out meaning that an additional risk is present.

Do NOT open the reagent bottle.

Please do not call the police.

Instead please call the CLEAPSS Helpline for further advice.

To view the DfE/EFA statement about 2,4-DNP click here.
Laser Cutting Equipment12 Jan 2017
It has been brought to our attention that there are a number of pieces of laser cutting and engraving equipment available online that do not comply with national guidance and/or regulations. 

In these machines the laser is not enclosed creating an increased risk of burning or eye damage.

CLEAPSS Model Risk Assessment 1.032 Laser Cutters states that the laser beam should be totally enclosed and an interlock provided to prevent operation unless the laser is enclosed. This is necessary to make the system into a Class 1 device, which is then suitable for use in schools.

If you have purchased a machine where the laser is not enclosed you should stop using it immediately.

For further advice and guidance please contact CLEAPSS.
Thefts from chemical stores in schools in the Kent area4 Jan 2017
CLEAPSS has become aware of a series of break-ins to chemical stores in schools in Kent. In each case the thieves have targeted very specific chemicals. If your school is in Kent and you have suffered a similar break in recently we would ask you to let us know what was stolen as this will help us assist the police in determining the likely reason behind the thefts. These events serve to remind us all of the importance of storing our chemicals securely. Remembering to routinely lock storage cupboards, chemical stores and prep-rooms can go a long way in ensuring that chemicals do not fall into the wrong hands.
Attention schools with chickens16 Dec 2016
The Government’s chief vet has  introduced a prevention zone for  poultry and captive birds to  help protect them from a strain of avian flu circulating in mainland Europe. 

Full details can be found here :-

The Salters’ Institute Annual Awards Ceremony13 Dec 2016
Salters Technician Award Winners 2016
This prestigious annual event held at Salters’ Hall celebrates high levels of excellence within the science education sector.  

This year the Ceremony took place on Friday 9 December 2016.  

Over 180 guests attended the Prizegiving Ceremony and lunch reception. 

We were very pleased to welcome Dr Annette Doherty, Senior Vice President Product Development and Supply at GlaxoSmithKline who delivered a keynote address and presented the Awards at the Ceremony. 

The Winners of the Salters’ National Awards for Science Technicians 2016 were:
Longbenton High School, Newcastle Upon Tyne (Winner)
Blenheim High School, Epsom (Runner-Up)
St. Aldhelm’s Academy, Parkstone, Poole (Runner-Up)
St. Paul’s Way Trust, London (Runner-Up)
Turriff Academy, Aberdeenshire (Runner-Up)

New for 2016, these Awards were run in collaboration with both CLEAPSS and SSERC.

For further information on all the Salters’ Institute activities, please visit 

What's new.. more..

PS005 - Waste disposal contractors  (17 Feb 2017)
A regularly updated list of contractors that will remove hazardous and other waste materials from schools. Includes brief advice on choosing the most appropriate. 

DL248i - Customisable Running a Prep Room:Spreadsheets  (17 Feb 2017)
A file of Excel spreadsheets for adaptation by technicians.

PX000 - Practical activity notes (interim document)  (16 Feb 2017)
Please note: This is a temporary resource containing the model risk assessment information and experimental points as they appeared on the reverse sides of the final edition of the CHIP Hazcards. This.. more

PX107 - Zinc  (16 Feb 2017)
Brief risk assessment guidance and experimental notes for a range of activities involving zinc metal (Hazcard 107).

PX082 - Potassium nitrate(V) and sodium nitrate(V)  (16 Feb 2017)
Brief risk assessment guidance and experimental notes for a range of activities involving potassium nitrate(V) and sodium nitrate(V) salts (Hazcard 82).