An ebook by Core Knowledge features information about early United Stated presidents such as George Washington and Thomas Jefferson and social reformers such as Sojourner Truth and Frederick Douglas.

Statistically speaking, the content covers several grades. Featuring all of the statistics typically covered in a college-level Statistics course, the expansive content spans from sixth grade on up to high school. Material...

An informative resource provides a textbook on American government that covers topics such as the definition of government and how democracy works. Each section provides brief questions at the end to assess scholars' understanding. 

Potassium permanganate, containing manganese one of the transition elements, has many uses such as mouthwash and propelling rockets, making it is a very diverse compound. The lesson delves into such transition elements and...

Read about some of the grassroots movements at the heart of Progressivism, and the changes they were pushing for and what they accomplished. Discusses labor issues, including the tragic Triangle Shirtwaist Factory fire. Also discusses...

This EnglishClub collection shares several classical works of literature leveled for elementary, intermediate, advanced, Shakespeare, and author information. These include various readings from William Shakespeare, Aesop, Rudyard...

A history of aeronautics focusing on the major types of air travel for each major time period. Excellent pictures are included in most sections. Easier reading is available by clicking on Level 2 or 3.

My Family is a downloadable storybook about a typical Metis family unit and the roles each person plays within that family. The reading level is for younger students but older students will appreciate the artwork.

Six short stories based on Greek myths to read online. The stories are at about a Grade 2 reading level.

The site is very easy to read and provides a thorough demystification of Nuclear Magnetic Resonance. Written by Dr. Joseph P. Hornak, a professor of Chemistry and Imaging Science at the Rochester Institute of Technology, the site breaks...

Tillena Lou and her siblings spend a lazy day imagining what it might be like if they were other types of animals. What would they need to survive? Synopsis: Tillena Lou explores her home and discovers interesting things about the...

This chemistry e-textbook provides students with AP-level reading and practice material on atomic structure and periodicity.

This chemistry e-textbook provides students with AP-level reading and practice material on colligative properties of solutions.

This chemistry e-textbook provides students with AP-level reading and practice material on thermochemistry.

This online textbook chapter provides learners with advanced-level reading and practice material on stoichiometry

This chemistry e-textbook provides students with AP-level reading and practice material on gas laws.