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.. (read more)
Flaming Bob Worley

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Latest news from CLEAPSS..
COVID-19 (Coronavirus) in Schools - Updated 07/10/2020
Returning in September Guidance 

We have now published all our updated and new guidance for schools returning in September. The key guide to read is GL343, this guide should be read alongside all of our COVID-19 guidance (see below for list).

The CLEAPSS office and Helpline is open Monday to Friday 8.30am to 4.30pm - Tel. 01895 251496

We will continue to answer ALL helplines, and continue to develop both emergency guidance for COVID-19 and longer term developmental guides across all the areas we cover.

If you have an EMERGENCY Helpline i.e. pupil with chemical in their eye, a chemical spill, or radioactive issue. 
Then please call 07565 114 059 (available 8.30am-5.30pm weekdays)

We are expecting the Helpline to be very busy, so if you have a COVID-19, technical or subject based question. Then please email it to

Please do NOT call the above mobile number with routine questions.

Primary schools should refer to our primary website for their guidance.

DT Staff should refer to our DT website for their guidance.
New CLEAPSS online training - Health & Safety for Science Technicians
This is an unmediated self-study course consisting of 4 video presentations interspersed with diy tasks.  As it is a trial the course is free of charge. Your feedback is important as it will help with the development of this and other online courses, so please leave feedback when prompted at the end of the course.
Please click here to start the course.   
***ACTION NEEDED!!***Associate membership renewals -For those memberships due to expire on 30th September 2020
Please be advised all emails requesting confirmation of pupil numbers for membership renewal have been issued in week, 21-27th September 2020.

Once you have submitted pupil numbers, an invoice will be raised and emailed to the contact identified by yourselves for processing.

This does NOT affect schools who are members via a local authority.

If you have not received your email, please contact the office on 01895 251496 or email
Renew your membership now!
Overseas school membership is due to expire on 30/09/2020. 

Please check your email box (including your junk mail) & confirm you wish to continue membership from 1st October 2020 by clicking on the link.

If you haven’t received an email, please let us know as soon as possible by emailing

New CLEAPSS Online Training - Radiation Protection Supervisor - Part A
We have limited number of places available for this three-hour online course which covers the basics of radiation protection in a school setting and provides an introduction to the role of the Radiation Protection Supervisor in schools (RPS - Schools).

Please email for more information.

Part B of this programme is a hands on, face to face course, designed to develop participants confidence in working with radioactive materials and will be held later this year.

An online refresher course for those who have already completed RPS training will be held later this term.

What's new.. more..

RB062 - Solutions for making ‘nylon ropes’
Guidance on preparing, labelling and storing of solutions, A and B, for making ‘nylon ropes’.
 (22 Oct 2020)

PP042 - Making nylon – demonstration
This demonstration shows preparation of nylon, where solutions of 1,6- diaminohexane in water and an acid chloride in an immiscible solvent are brought together. The nylon polymer forms at the interfa.. more
 (22 Oct 2020)

PP079A - The reaction between iron and sulfur, extension tests, students’ version
The reaction between iron and sulfur, to produce iron(II) sulfide, is described in PP079. The reaction between iron and sulfur – students’ version. This document describes a range of chemical tests.. more
 (8 Oct 2020)

PP079 - The reaction between iron and sulfur - Students’ version
The reaction between iron and sulfur, to produce iron sulfide, is cited in many textbooks and other resources as a good demonstration of the difference between mixtures and compounds. A key distinguis.. more
 (8 Oct 2020)

The reaction between iron and sulfur - Video
The reaction between iron and sulfur
 (8 Oct 2020)