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Encyclopedia of Earth
Encyclopedia of Earth, a new electronic reference about the Earth, its natural environments, and their interaction with society. The Encyclopedia is a free, fully searchable collection of articles written by scholars, professionals, educators, and experts who collaborate and review each other's work. The articles are written in non-technical language and will be useful to students, educators, scholars, professionals, as well as to the general public.
Encyclopedia of Life
A new project to create an online reference source and database for every one of the 1.8 million species that are named and known on this planet.
National Oceanic and Atmospheric Administration
NOAA is an agency that enriches life through science. Our reach goes from the surface of the sun to the depths of the ocean floor as we work to keep citizens informed of the changing environment around them.
National Science Digital Library
See this page for data, images, and articles in the Biological Sciences. The National Science Digital Library (NSDL) was created by the National Science Foundation to provide organized access to high quality resources and tools that support innovations in teaching and learning at all levels of science, technology, engineering, and mathematics (STEM) education.
Why Quertle is Different
It's easy - Quertle's friendly interface makes it simple to search and refine results.
It's powerful - Using advanced semantics, Quertle finds quality results, not just long lists.
It's inclusive - All of PubMed PLUS full-text documents, NIH grants, news, and more.
USGS Publications Warehouse
The Pubs Warehouse provides access to over 160,000 publications written by USGS scientists over the century-plus history of the bureau.
Last updated on Mar 15, 2021 2:49 PM