Step-by-Step Laboratory Practicals for IB, IGCSE & GCSE Science

Welcome to Practical Science — a free library of over 100 detailed laboratory practicals, study guides and revision resources for secondary school science students and teachers. Whether you are preparing for your IB Diploma, Edexcel IGCSE or GCSE exams, you will find clear instructions to help you succeed.

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A weekly roundup of the biggest trending science stories — from breakthroughs in physics to new discoveries in biology and chemistry. Perfect for keeping up with the latest science news.

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  This Week in Science: Impossible Atmospheres, Diamond Breakthroughs, and Sharks With Friends24/03/2026
  From an ancient planet that defies the laws of physics to bacteria engineered to hunt cancer, this week’s science news spans the cosmos and the deep blue sea. Here are six stories that caught our attention — and might just spark a great classroom discussion.
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  This Week in Science: From New Particles to Ancient Ice23/03/2026
  This week’s biggest science stories: from new particle discoveries to ancient ice core revelations. Weekly science news roundup for students and teachers.

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IGCSE Prescribed Practicals

Complete step-by-step guides for every Edexcel IGCSE prescribed practical, with methods, safety notes, model data and analysis.

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Free IB Chemistry 2025 Online Textbook

A comprehensive, interactive online textbook covering the entire IBDP Chemistry 2025 syllabus. Structure 1–3 and Reactivity 1–3 with learning outcomes, practice questions and answers — completely free.

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IB Internal Assessment Help

Preparing your IB Chemistry IA? These guides will help you choose a topic, structure your investigation and score full marks.

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Revision Tools

Latest Posts

• IB Physics IA: Investigating Magnetic Fields29/03/2026
  In this investigation, you will measure how the magnetic field strength around a long straight current-carrying wire varies with distance. Using a Hall probe (or a compass and plotting paper as an alternative), you will collect quantitative data and test whether the relationship follows the theoretical inverse proportionality predicted by Ampère’s law. This is an excellent IB Diploma Physics HL Internal Assessment topic. This practical is suitable for IB Diploma Physics HL students.
• Effective Revision Techniques for IB, IGCSE, and GCSE28/03/2026
  Scoring top grades in IB Diploma, IGCSE or GCSE science is not just about intelligence — it is about how you revise. The students who consistently achieve the highest marks are not necessarily the ones who work the longest hours; they are the ones who use the right strategies. This guide brings together the most effective, evidence-based revision techniques to help you work smarter and perform at your best when it matters most.
• Exploring IB Physics IA: Young’s Double-Slit Experiment28/03/2026
  Young’s double-slit experiment is one of the most elegant demonstrations in physics. By passing light through two closely spaced slits, an interference pattern of bright and dark fringes is produced on a screen. Measuring the fringe spacing allows you to calculate the wavelength of the light used. This makes it an excellent IB Diploma Physics HL Internal Assessment investigation.
• IB Biology and Chemistry IA: Analyzing Vitamin C with Titration Methods28/03/2026
  Vitamin C (ascorbic acid, C₆H₈O₆) is an essential nutrient and a reducing agent that is readily oxidised. In this investigation, you will use iodometric titration to measure the vitamin C content of fruit juice after exposure to two continuous variables: temperature and metal ion concentration. Both investigations use the same titration method, making this a versatile and highly scorable IB Chemistry IA topic. This practical is suitable for IB Diploma Chemistry and makes an excellent Internal Assessment (IA) topic.

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