Welcome to the new CLEAPSS Science Website
What is CLEAPSS
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..
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Latest news from CLEAPSS..
Eye protection; a change in standards
Eye protection; a change in standards
The standards for eye protection have recently been reviewed and updated to an ISO (worldwide) standard.
Although the new standard is more demanding than previously, there is no need to replace your current stocks.
Suppliers will start to sell eye protection to the new standard during the autumn term, but they can still sell existing stocks to the old standard. Therefore, the likelihood is you will end up with a mixed stock of eye protection to either standard for a while.
Safety glasses were labelled EN166 and will in future be labelled EN ISO 16321 C Safety goggles were labelled EN 166 3 and will in future be labelled EN ISO 16321 3
Existing products certified to EN 166 can continue to be sold until the expiry of their certification, up to a maximum of five years from the date of issue.
For example, if a product is certified to EN 166 before the November deadline, it may remain valid until late 2029 depending on the certificate’s issue date. BSI have a blog about this change.
We also have a buying guide for eye protection
How to audit your science department courses
Auditing Science Departments and H&S Management
The main emphasis of this course is on management issues, risk assessment and the auditing and monitoring of Health & Safety practice.
RSC Survey
More science technicians leaving because of stress and exhaustion
Royal Society of Chemistry annual survey also finds that science teaching staff are struggling to deliver practical lessons
https://www.tes.com/magazine/news/general/more-science-technicians-leaving-stress
Food Waste
CLEAPSS has worked closely with DEFRA to establish clear, definitive guidance for food waste disposal in science departments in schools. This follows uncertainty around how the changes in regulation affect handling of what could be consider to be food waste arising from science lessons, especially when the material has been contaminated, intentionally or accidently, by chemicals.
In short, food materials used in science should be double-bagged in opaque plastic and placed in general waste.
CLEAPSS - Technicians H&S Self Study Online Course - FREE!!!
We have developed a self-study course for technicians.
We expect this to take 2-3hrs to complete.
This is a FREE course, all you need to do is complete this registration form.
The course is made up of a series of videos and some tasks. .
What's new..
All new documents..
Tec Tip -Magnets and field lines, ways to clean up iron filings and an alternative method that uses twist ties
Magnets and field lines, ways to clean up iron filings and an alternative method that uses twist ties
(9 Oct 2025)
PP122 - Lithium Sodium Potassium Reacting with Water
This procedure is required by every examination specification, as it illustrates the change in reactivity in Group 1 of the Periodic Table. However, the reaction between sodium and potassium with wate.. full details
(8 Oct 2025)
2025 Hazcard Updates ONLY
This contains all Hazcards updated in 2025 in one handy file. For a all in one file of ALL Hazcards see updates here.
(30 Sep 2025)
All CLP Hazcards - 2016 Edition (with 2025 updates)
All-in-one file of the 2016 Edition of CLEAPSS CLP Hazcards including all updates up to 30/09/2025. See Hazcard Index (GL121) for a summary of changes made.This is designed for downloading to mobile d.. full details
(30 Sep 2025)
GL121 - Hazcard Index (CLP edition)
An index to all the chemicals included in the 2016 Edition Hazcards and later updates. Includes Hazcard numbers and Recipe references.
(30 Sep 2025)