Regulations made under the Health and Safety at Work Act 1974 (UK) require a risk assessment to be carried out before hazardous chemicals are used or made, harmful microorganisms used or a hazardous procedure is carries out. Please view the following information carefully before undertaking any practical activities.

If you are working in schools outside the UK, please follow the Health & Safety regulations provided by your government and employer.

Pupil, Teacher and Technician resource sheets for the activities are generally presented as PDF files. You must have Adobe Acrobat Reader version 4.0 or above installed on your computer to view these files.

If you are experiencing difficulties opening the resource files, it is likely that you do not have Acrobat Reader installed, or that you have an earlier version. You can download Acrobat Reader from the Adobe website at www.adobe.co.uk

Please note, it is essential that you remove any previous versions of Acrobat Reader from your computer before installing a more up to date version. If this is not done, you may still experience difficulties opening files, even if you successfully install the new version of Acrobat Reader.