Science Library - free educational site


Welcome to! We love science and mathematics, and believe that fun and learning do not live at different addresses.

This is a free website, created by science teachers, and website professionals, for the purpose of celebrating humankind's greatest invention: SCIENCE!

The site is for everyone: students, teachers, university wannabe nerds and the general public. It is packed full of articles for every age group, and every level of science learning.

For highschool exercises, labs, quizzes and exam practice questions, please visit our sister website:

We also have a website dedicated to environmental issues: Umwelt.Science, which is in English and German.

If you have any problems using the tools, or have suggestions, or would like to contribute something, we would love to hear from you.

Enjoy your visit to!

Andrew Bone, editor

Latest Item on Science Library

The most recent article is:

Mathematics jqmath reference

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Games and Fun

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Test your knowledge

Question: Microwaves have wavelengths around 10-6 m. X-rays have wavelengths around 10-10 m. Approximately how many X-ray crests could fit between two consecutive microwave crests?

Check your answer and try the full quiz on this subject: Quiz Challenge

Go to the article about: Frequency and wavelength

Subject of the Week


'Universe' on covers astronomy, cosmology, and space exploration. Learn Science with


Great Scientists

Benjamin Franklin

1706 - 1790

Benjamin Franklin was an American scientist, politician, statesman, publisher, author, inventor, philanthropist, and economic theorist. He was a founding father of the United States, and a symbol of the Enlightment and scientific revolution.

Benjamin Franklin

Quote of the day...

It is impossible to step twice into the same river.

A Term a Day:


[ Environment : Biology]

Nitrogen is involved in both biotic and abiotic processes: fixation, ammonification, nitrification and denitrification.

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