Try these quizzes based on GCSE past papers and quick-fire questions. By working your way through the questions created by experts, you can prepare for your exams and make your GCSE revision more ...

Apr. 14, 2025 — Microplastics and the much smaller nanoplastics enter the human body in various ways, for example through food or the air we breathe. A large proportion is excreted, but a ...

Apr. 10, 2025 — When materials are created on a nanometer scale -- just a handful of atoms thick -- even the thermal energy present at room temperature can cause structural ripples. How these ...

A variety of ecosystems are spread across the world, each with distinctive interacting characteristics and components. They range from small (eg a freshwater pond) to global (eg the desert biome ...

With efforts towards gender equality stalling, voting in a first female head of the UN would provide powerful representation for half the world’s population — and be good for all of it.

In this week’s news roundup, two NASA astronauts finally return to Earth after nine unexpected months in space, gray seals hold their breath for more than an hour, and penguin poop panics krill.