Resources

Even though the internet transformed the ways society exchanges information, it is still relatively difficult to find good, free resources for science. There's abundant popular science content around the web, and the reader can find them with ease; this list aims to aggregate high-quality material for a deeper study. If you are curious about the difference between this page and its Portuguese counterpart, please note that Wikipedia in English has roughly six times more articles than the Portuguese version.
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Maths

Chemistry

Physics

Computer Science

Biology