CLEAPSS Supporting practical science and technology
CLEAPSS Chemistry
Chemistry – Let's make it happen!

CLEAPSS provides guidance for teachers, technicians, science advisers and H&S officers on all aspects of practical work. We know that chemistry experiments can cause problems and activities may not 'work' as expected, or provide the effective learning opportunity that’s required. Sometimes, health and safety concerns are raised about the chemicals involved.

CLEAPSS works with suppliers and others to ensure that suitable chemicals and equipment are used in schools and we can also suggest ideas and innovative methods that might help you enhance practical chemistry in your school.

Colourful displacement reaction
So, if you’re stuck, or need a bit of advice, get in touch by e-mail or 'phone and we'll do our best to help!

Latest news from CLEAPSS..
Sign up for your CLEAPSS Account

The way you log on to CLEAPSS is changing!

Unless are already logging on to CLEAPSS with your personal login then the password you are using will shortly expire and there won't be a replacement in next year's Bulletin.

To continue accessing our services and websites you will need to register your email to create your own individual login. The process should only take a few minutes and once you are set up you will be able to log in with this account for as long as your school remains a member.

Follow this link to set up your CLEAPSS account.

We have created a FAQs guide to this process GL460 - Individual Login FAQs, to help you through this process.
CLEAPSS at the ASE Conference 2025
Find all the resources related to our workshops, talks at the ASE Conference in Nottingham 2025.

CLEAPSS - Teachers H&S Self Study Online Course
We have developed a new self-study course for teachers, which covers the basics of health & safety and how to manage practical work and risk assessments in lessons.

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. There is an option to download / print off the PowerPoint slides used in the videos to enable users to made notes during the course.

Eye protection vs Goggles
Unsure of the differences between Googles and Eye Protection (safety specs) ?

The read our buying guide which outlines the differences between the two.
CLEAPSS resources for techs
A video to highlight CLEAPSS resources technicians may find helpful when organising prep rooms and labs, and which could also save them valuable time. 


Chemistry Resources
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Members only resource Click to download Document.
Crude oil refinery is a foundation industry, providing fuel products for heating and transport, and raw materials for many further industries, including polymer and pharmaceutical manufacturing. Fract.. more

Free resource Click to download Document.
A portfolio of designs of school science laboratories, by Andy Piggott for the ASE

Members only resource Click to download Document.
This leaflet is intended to give brief details only of the major manufacturers and suppliers of electronic balances suitable for use in science within secondary schools and colleges.

Members only resource Click to download Document.
CLEAPSS - Teachers H&S Self Study Online - Session 1 - Task

Members only resource Click to download Document.
Outlines the work that science technicians do, the tasks which they should not, ideally, be given, and provides a pointer to the number of technicians needed in a department and to management issues w.. more

Members only resource Click to download Document.
This includes all the pictograms required by the Globally Harmonised System for chemical hazard labelling. A selection of large (A4) and small sized pictures for printing and use in schools

Free resource Click to download Video.
Testing for organic functional groups: unsaturation or double bonds

Members only resource Click to download Document.
Straightforward advice on how to make sure your practical lessons work as you intend. Includes planning and preparing the activity, managing students, timing and equipment, and clearing away. Also inc.. more

Members only resource Click to download Document.
Straightforward instructions on using a tap funnel, a piece of equipment used in several chemical preparations and investigations.

Members only resource Click to download Document.
Brief risk assessment guidance and experimental notes for a range of practical activities involving monobasic organic acids and their salts (Hazcards 38A, 38B, 38C, 38D).

Showing results 1 to 10 of 393
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