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)
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Latest news from CLEAPSS..
New Dept of Education Guidance - Safe storage and disposal of chemicals18 Oct 2017
The Department of Education have released new guidance on the safe storage and disposal of hazardous materials and chemicals.

This guidance is for school leaders, staff and governing bodies. 

It explains how to handle and dispose of hazardous substances and materials, and signposts to professional bodies offering further advice.

You can download the guidance here.
Issues with bottles of concentrated nitric acid5 Oct 2017
We have received a number of Helpline queries recently involved plastic bottles containing concentrated nitric acid which appear to be leaking and/or releasing corrosive/toxic fumes. 

We urge all schools to check their stocks of all corrosive chemicals.

To help support schools with this issue, we have created a suite of new guides and resources. 

Guide GL246 explains how to safely check your chemicals. 

Guide E233 helps you manage you stocks of chemicals.

GL247 discusses the issues around the shelf-life of chemicals

Guide GL251 is a step-by-step guide on how to decant nitric acid, and is supported by a video.

Guide GL252 provides guidance on what type of bottle and caps to use to store nitric acid.

Bogus emails from CLEAPSS3 Oct 2017
We have been receiving reports of malicious emails allegedly coming from CLEAPSS. 

These encourage the recipient to follow a link, usually purporting to be to an unpaid invoice. 

Having investigated these, we can confirm that these e-mails are NOT coming from CLEAPSS.

Please check any e-mail that appears to be from CLEAPSS carefully.

It is important not to follow any link or open any attachment.

Click here for further guidance on what to look for.

Recipes and activities – they are still here3 Oct 2017
Two temporary resources contain materials from the latest CHIP editions of Hazcards and the Recipe Book which have not yet been revised in line with CLP and current guidance. If you can’t find the recipe or activity you need, try the following documents. These documents have not been tagged, so will not come up on a search. They are also subject to frequent changes as our guidance is updated. Please read the user notes at the front of these resources and note the need to check for the most up-to-date safety advice.

PX000 - Practical activity notes (interim document)
This temporary resource contains the model risk assessment information and experimental points as they appeared on the reverse sides of the final edition of the CHIP Hazcards.

RB000 - Recipe Book (Contents, Index & CHIP recipes); interim document
This temporary resource includes Recipe Sheets that have not yet been revised and included in the CLP Recipe Book.


Gatsby - Good Practical Science report26 Sep 2017
Gatsby Charitable Foundation launches Good Practical Science report to transform practical science education in England.

The Gatsby Charitable Foundation has launched the Good Practical Science report, outlining ten benchmarks to transform practical science education in England.

The Good Practical Science report details recommendations to help secondary schools achieve world-class science education, even when facing tight budgets.Looking at more than 400 secondary schools in England to gauge the status of practical science, the report also involved visits to world-leading nations including Finland, Germany and Singapore to learn what was done differently internationally.

The report was led by Sir John Holman, Emeritus Professor of Chemistry at the University of York, founding director of the National STEM Learning Centre and a former head teacher and science teacher.

Download the 8 page summary report here

Download the full report here

What's new.. more..

Distillation Part Two  (18 Oct 2017)
Distillation Part Two

HC017 - Calcium chlorate (I)  (15 Oct 2017)
Risk assessment guidance for Calcium chlorate(I)

L195 - Safer chemicals, safer reactions  (13 Oct 2017)
An invaluable practical guide on how to safely undertake a range of visually and intellectually appealing chemical reactions. Includes alternatives to some traditional activities such as the thermit r.. more

SRA026 - Thermite reaction in flower pots  (13 Oct 2017)
The thermite reaction is conducted on a relatively large scale in a pair of small flower pots. The white hot molten iron pours though holes in the base onto a thick layer of sand in a metal tray or si.. more

PS05A – 2,4-DNP(H) Waste Disposal Contractors  (12 Oct 2017)
The following list of contractors is not an ‘approved’ list, but ones we know will deal with 2,4-DNP(H), and other such explosive chemicals.