K - 8
SCIENCE & TECH
With more than 1,000,000 human-edited definitions, Acronym Finder is the world's largest and most comprehensive dictionary of acronyms, abbreviations, and initialisms. Combined with the Acronym Attic, Acronym Finder contains more than 5 million acronyms and abbreviations.
Explore Bio.com, your source for true stories about notable people. Features biographies of famous people past and present. Includes celebrity news and events, listings, game and channel information.
The Bible Gateway is a tool for reading and researching scripture online -- all in the language or translation of your choice! It provides advanced searching capabilities, which allow readers to find and compare particular passages in scripture based on keywords, phrases, or scripture reference. You can view a complete list of available Bible versions and translations.
Encyclopædia Britannica is one of the world's most trusted sources of information on every topic imaginable - from the origins of the universe to current events and everything in between .
The Classical Archives is the largest classical music site on the web, with 672,000 files you can listen to (stream), or purchase in DRM-free MP3 for download by 15,000 composers and 60,000 artists from over 350 recording labels.
YourDictionary is the easiest to use on-line dictionary and thesaurus. To create the dictionary you can understand we feature simple, straightforward definitions that actually make sense along with example use cases for the most popular words.
Our knowledge of the many life-forms on Earth - of animals, plants, fungi, protists and bacteria - is scattered around the world in books, journals, databases, websites, specimen collections, and in the minds of people everywhere. Imagine what it would mean if this information could be gathered together and made available to everyone – anywhere – at a moment’s notice. This dream is becoming a reality through the Encyclopedia of Life.
For more than 150 years, in print and now online, Merriam-Webster has been America's leading and most-trusted provider of language information. Each month, our websites offer guidance to more than 40 million visitors.
The National Map is a collaborative effort among the USGS and other Federal, State, and local partners to improve and deliver topographic information for the Nation. It has many uses ranging from recreation to scientific analysis to emergency response.
PBS and our member stations are America’s largest classroom, the nation’s largest stage for the arts and a trusted window to the world. In addition, PBS's educational media helps prepare children for success in school and opens up the world to them in an age-appropriate way. We invite you to find out more about America’s largest public media enterprise.
The featured quotations span the ages from Greek philosophers, the Bible, and Shakespeare to modern authors, celebrities, and world leaders.
The Smithsonian Institution is the world's largest museum, education, and research complex. We are a community of learning and the opener of doors. Join us on a voyage of discovery and explore and learn online.
The Visual Dictionary is different from an encyclopedia or from a traditional online dictionaries, thesauri and glossaries because the images replace the words.
Welcome to Vocabulary.com, the quickest, most intelligent way to improve your vocabulary. Regardless of your education level or age, Vocabulary.com will help you to master the words that are essential to academic and business success.