General Science Resources
A very good revision of every topic in the Key Stage 3 curriculum (11 - 14 years old pupils). The link takes you to the Science section, but every other subject is covered too.
A very good revision of every topic in the GCSE curriculum (14 - 16 years old pupils). The link takes you to the Science section, but every other subject is covered too. Amongst other sections, the site also contains a great resource: the Core Science audio files and the Additional Science audio files for the GCSE topics.
Quite good and easy to follow revisions on topics such as cell structure and function, microorganisms, or plants and animals structure and function.
Quite good and easy to follow revisions on topics such as matter, Periodic Table, chemical elements, atoms, chemical reactions and biochemistry.
Quite good and easy to follow revisions on topics such as Earth energy, Earth structure, Atmosphere, Hydrosphere, Biosphere, climates and biogeochemical cycles.
Fantastic YouTube channel with very high-quality videos. Although some might be quite advanced for you, a fair amount of them should help your understanding of a number of essential topics on Biology, Astronomy, Physics and Chemistry.
A select collection of scientific videos organised by categories and verified in quality and accuracy by a scientist.
An impressive collection of animations focused on Genetics and human infectious diseases.
If watching wildlife and natural world videos is your thing, then make sure to check out Wildlife Finder. It is a web resource form BBC where you can watch online for free high quality natural history videos extracted from BBC's archive.
Through a series of easy-to-understand articles on hot scientific topics, Planet Science tries to tickle your curiousity, excite your interest, and unleash your passions in science.
A great collection of articles explaining everything you've always wanted to know about Science and never dared to ask.
Wide, reliable and updated scientific encyclopedia, with special sections devoted to Technology, Chemistry, Geology and controversy in the History of Science.
Ambitious project to organize and make available virtually all information about the approximately 1.8 million known biological species.
A good collection of educational information, quite focused on Astronomy, but also covering other major scientific areas: Life, the Earth and Physics. With interesting animations.
Dictionaries and Encyclopedias
Quite possibly the best resource on the net when you need to find the meaning of a term or even knowing almost everything about it. It yields, in the same page, information collected from several sources, including a variety of dictionaries and the Wikipedia. You can also listen to the pronunciation of most words.
Not entirely flawless, but yet the most comprehensive and updated encyclopedia online.
Amazing collection of educational resources on a wide range of knowledge topics.
A fantastic resource with definitions, images and pronunciation for almost everything in astronomy, the Earth, plants, animals, the human being, energy and more.
The place to go when you simply need to know the meaning of a scientific term. Includes the etymology, the inflected forms and, best of all, you can listen to the pronunciation of them all.
A comprehensive list of scientific dictionaries online. Some are better than others.
The medical argot unveiled. Helpful when studying the human body.
Many scientific terms have old Latin or Greek roots. The Etymoloogy Dictionary explains many of them.
Assorted Scientific Knowledge
If you are one of those who think that Science, in its insatiable curiosity and desire to put knowledge above all things, would never inadvertently set off a chain of events that lead to some sort of disaster that ended the world, then, here are five experiments that may prove you wrong.
Some of the most bizarre experiments ever conducted in the name of Science.
While most of them were considered significant breakthroughs in their time, they were just the result of the eagerness for personal recognition, or the will to mock a contender.
And the question goes: how can you build all the amenities of tomorrow when you are stuck in the past. No problemo. This poster has you covered. And don't forget to hang it up in your time machine.
A showcase of images of animals and environment that allow us to see amazing views of this awe-inspiring planet.
Stunning set of microscopic images that comprises the Nikon Small World prize winners of the past 40 years.
29 images selected from the 2010 Nikon International Small World Photomicrography Competition winners.
38 outstanding photos that let us see beyond the capabilities of our unaided eyes.
Electron microscope photo set of 32 microwonders.
Amazing microscopic images from the Olympus BioScapes Digital Imaging Competition.
The Nature of Science
Learn how success in scientific research relies in getting used to one's ignorance.
Science must be properly quoted, because removing knowledge from context may leave something that's sometimes hilarious, sometimes strange and, sometimes, completely absurd. See some good examples on this website devoted to absurdity.
Background Scientific Knowledge
Scientific language frequently makes use of a specific set of adjectives, nouns, verbs, adverbs, conjunctions and prepositions. Many of them are listed in this page.
Online Tools for your Projects
Create text documents, presentations and spreadsheets in a similar way to what you'd do with MS Office. Store them on-line, access them from any computer, share them with your friends to work collaboratively from different places and publish them for everyone to see. All for free: you only have to sign up for a Google/Gmail account. Learn more with the "Getting Started Guides" for spreadsheets, documents and presentations, or with the videos at Google Docs YouTube channel or at YouTube Google Docs Community.
But if all you want to do is creating an online presentation, this is the place to go. You create your presentations with PowerPoint (not 2007 version, as of the moment of writing this), OpenOffice, or in pdf format, upload them to SlideShare and they'll be accessible to everyone with an internet connection. Once uploaded, you can do some basic editting and embed it in any of your blogs or web pages. To see how it works, watch a presentation on SlideShare or read the F.A.Q.
Great collaborative (or solo) online mindmapping tool where you can add links, attached documents, notes, icons and images to every node of your map. The maps can be published on-line for everyone to view, embedded into a webpage, and exported to pdf, jpeg, png and several mind map formats. Don't forget to use the keyboard shortcuts ("tab" and "shift+tab") to fast-create child and sibling nodes.
Another mindmapping tool with lots of features, like the possiblility of adding documents, images, maps or calendar events to the nodes of your mind map. It also allows embedding the map into your website, exporting it to jpeg and png image formats, sharing it and collaborative working.
Create colourful mind maps that you can share, email, print, save as an image or embed into your websites.
Create mind maps ("thinking guides") from scratch or from a wide number of pre-made templates with a rich variety of shapes and arrangements. They can be printed but not saved as images. They are specially meant to be used as online presentations where you can set the sequence by which you want the thinking guide to be revealed. Registration (free) is needed to save your projects and thus, share them, email them, and present them online.
When you need to create a mind map but don't have access to the Internet, you can still produce rich and colourful ones with MS Word. This great tutorial walks you through the steps to take.
Create flashcards for online study that you can download, print or embed into your webpages. You can also view thousands of flashcard sets created by others. Registration is free and recommended, although not strictly necessary.
This list guides you to online calculators that will help you calculate everything from algebra equations and mortgage interest to fuel costs and body fat.
Quite possibly, the best online calculator.
Another good and easy to use online calculator.
Yet another one, with a friendly interface and a knack for fractions.
Choose between a variety of graph types, paper sizes, units and grids to render a free graph paper ready for printing.