CLEAPSS Supporting practical science and technology
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.. (read more)
Flaming Bob Worley

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Latest news from CLEAPSS..
The Science Teaching Survey 2026
The Science Teaching Survey 2026 is open! If you work in education, you know the challenges better than anyone – so we want to hear directly from you.

Take 15 minutes to complete the survey. Your answers will tell us what to focus on

Product Recall: Hobbycraft Giant Box of Craft
CLEAPSS is aware of an issue of Asbestos being present in a Hobbycraft sand based product.

This is a commercially available product rather than a specialist school science/DT product. However, we are aware that some schools may have these products.

If you do have these products you should follow the advice given in the below links. 


Copper Sulfate
CLEAPSS has recently received multiple Helplines about incidents with copper sulfate. 

This includes situations where pupils are deliberately consuming Copper Sulfate, please ensure you enforce the no eating / drinking rules in your labs and also are aware of how to deal with emergencies.

E-cards : How to deal with lab emergencies

No eating or drinking guidance 

Please also review the updated Hazcard before using copper sulfate.

2025 Hazcard updates includes and update to the safety advice for copper sulfate. Hazcard 027C - Copper Sulfate


A quick and safe method for preparing hydrated copper sulfate crystals and beautiful blue crystals may be obtained within 30 minutes.
LabAid
Do you have excess equipment taking up space ?

Or looking to help support practical work ?

Then have a look at the work that LabAid does.
The Practical Biologist - a hands-on biology booklet
We are proud to be part of this from Darwin Biological

New Resource for UK Schools!

Darwin Biological has launched The Practical Biologist - a hands-on biology booklet created with expert partners to inspire the next generation of scientists.

Copies are arriving in 4,500 UK secondary schools this week, and it’s free to view online: www.darwinbiological.co.uk
Packed with practical tips, experiments, and free resources from leading organisations.

Designed to make biology exciting, accessible & sustainable for every classroom.

What's new.. All new documents..

GL120 - About Hazcards
Describes the structure of the CLP Hazcards, and amplifies and explains the safety information which is included on them.
 (10 Mar 2026)

Experimentally determine the speed of light
Experimentally determine the speed of light in air with the use of a 1Mhz modulated laser and a beam splitter. 
 (9 Mar 2026)

PP160 - Experimentally determining the speed of light in air
This is an experiment to experimentally determine the speed of light in air with the use of a 1Mhz modulated laser and a beam splitter. 
 (9 Mar 2026)

DL223 - Customisable Model Health and Safety Policy for Science Departments
Can be easily used by a science department to produce its own H&S policy
 (6 Mar 2026)

GL500 - Finding your way around the CLEAPSS science website
This resource is taken from the CLEAPSS H&S Management for Heads of Science courseIt uses screen shots to illustrate how to find what you are looking for on the CLEAPSS science website and finishe.. full details
 (6 Mar 2026)