Step-by-step laboratory practicals for IB, IGCSE & GCSE Science
Category: Practical Science
Six standout science stories from this week: Cambridge powers an "impossible" LED, a kimchi microbe sweeps nanoplastics from the gut, NASA's Roman telescope prepares to weigh hidden neutron stars, a plant returns from extinction in the Australian outback, a remarkable stegosaur skull rewrites dinosaur evolution, and scientists explain why humans are so overwhelmingly right-handed.
A complete, free set of one-page knowledge organisers for Edexcel IGCSE Double Award Science (4SD0) — 64 topics across Biology, Chemistry and Physics, matched to the DA scheme of work.
A complete, free set of one-page knowledge organisers for Edexcel IGCSE Physics (4PH1) — all 22 topics, built for active revision. Download any topic below.
A complete, free set of one-page knowledge organisers for Edexcel IGCSE Biology (4BI1) — all 22 topics, built for active revision. Download any topic below.
A complete, free set of one-page knowledge organisers for Edexcel IGCSE Chemistry (4CH1) — all 28 topics, built for active revision. Download any topic below.
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.