
What is the inverse square law for gamma radiation and how is it demonstrated in school physics?
For a point-like gamma source, intensity is expected to vary inversely with the square of distance when geometry and background are properly considered. A school demonstration requires an approved source, compatible detector, controlled geometry and statistical treatment under CLEAPSS L093 and local radiation arrangements. This article explains the relationship but does not provide source activity, distances, timings or handling instructions.

What glassware does a secondary school chemistry laboratory need?
A secondary chemistry laboratory needs durable everyday glassware for containing, mixing, heating, transferring, filtering and measuring, plus specialist pieces for curriculum practicals. The core usually includes test tubes, beakers, conical flasks, measuring cylinders, funnels, watch glasses and suitable pipettes. Burettes, volumetric glassware, condensers and distillation components should follow the exact GCSE and post-16 programme.

What PPE is required for different types of secondary school science experiments?
PPE for secondary science must be selected by activity and risk assessment, not issued as one fixed kit for every lesson. Eye protection, protective clothing, gloves, face protection or respiratory protection may be required depending on the hazard and controls already in place. Current CLEAPSS guidance and employer procedures should determine the exact type, standard, fit, use and maintenance.

How Technicians Can Make Secondary School Open Evening a Success
A secondary school open evening gives prospective students and their families a chance to see what life at the school is really like. For the science department, it is also an opportunity to show what practical science looks like beyond the classroom.

Every student can take part: How microscale can make practical science more accessible
How small scale practical work and thoughtful resource design can help science departments remove barriers for learners

Complement, Don’t Replace: How Microscale Science Supports Practical Science and Builds Confidence from Year 7
How Microscale Science Supports Practical Science and Builds Confidence from Year 7

Lab & Prep Room Science Technician Checklist
Philip Harris Checklist to help school science technicians prepare laboratories and prep rooms for science practicals.

Microscale Science: Small Scale. Big Benefits.
How microscale practicals can help science departments support student learning, reduce waste and maximise budgets.

Which 3D Printer Is Best for UK Secondary Schools?
Introducing 3D printing into a Design & Technology department opens exciting opportunities for students to test ideas, prototype designs and develop real engineering skills.

Philip Harris chemical ordering update
The price of our hazardous chemicals has reduced, and by consolidating your chemical order, you’ll also benefit from lower delivery costs.

More Than a Supplier: How Philip Harris and Findel Empower Whole School Science
How Philip Harris, part of Findel, goes beyond supplying equipment to support the full science experience that shapes young minds.

Delivering Triple Science with Confidence
How the ambition of triple science impacts schools, from increased practical demands to the pressures felt by technicians and teachers.