According to its website:
The Biodiversity Heritage Library improves research methodology by collaboratively making biodiversity literature openly available to the world as part of a global biodiversity community.
You can find the Biodiversity Heritage Library online here:
The Encyclopedia of Life is a tremendous resource for everyone. Its mission is to “increase awareness and understanding of living nature through an Encyclopedia of Life that gathers, generates, and shares knowledge in an open, freely accessible and trusted digital resource.”
Its collections are available under a collection of Creative Commons licenses which means you can make flexible use of the materials you find there for personal use.
You can find the Encyclopedia of Life online here:
Keith’s Think Zone
Keith Enevoldsen has published a great collection of educational resources on his site, Keith’s Think Zone including his wonderful “The Periodic Table of the Elements, in Pictures and Words“.
NASA has a fortune of great content about space, space exploration and the agency’s Earth-facing missions. They publish imagery from space exploration missions and their content is fairly freely available. NASA Kids Club is, as you may have guessed, aimed at kids and well worth checking out.
NASA has a few Flickr profiles which incredible imagery from a range of missions and focus areas. Here are some I like:
- NASA on the Commons
- NASA Goddard Space Flight Center
- NASA Jet Propulsion Laboratory
- NASA Orion Spacecraft
- NASA New Horizons
Of course you can also find a number of channels on YouTube which are also great.
NASA content licensing
According to the NASA Media Usage Guidelines:
NASA still images, audio files, video, and computer files used in the rendition of 3-dimensional models, such as texture maps and polygon data in any format, generally are not copyrighted. You may use this material for educational or informational purposes, including photo collections, textbooks, public exhibits, computer graphical simulations and Internet Web pages. This general permission extends to personal Web pages.
As you may expect, National Geographic Kids has great resources for kids about a range of topics with mixed media.
Wikipedia is a source of knowledge about just about any topic your kids will want to know about. It is maintained by a community of contributors and inaccuracies are usually corrected. Just the same, it may not always be completely accurate so feel free to fact check.
Wikipedia content licenses
Content available on Wikipedia is typically licensed under one of the following content licenses:
- Creative Commons Attribution-ShareAlike 3.0 Unported License (“CC BY-SA”), and
- GNU Free Documentation License (“GFDL”) (unversioned, with no invariant sections, front-cover texts, or back-cover texts).
The Royal Institution website is a fantastic resource for science enthusiasts, especially kids. They have published a wonderful library of videos that include their annual Christmas Lectures that Michael Faraday started back in 1825: