Hi, what do you want to do?
Utah Education Network (UEN)
Utah Open Textbook: Earth and Space Science
From the vast universe to natural disasters, Earth and Space Science studies phenomena near and far. A complete textbook offers informational resources for a high school Earth and Space Science course. Chapters include topics such as the...
Harvard University
Harvard University: Eye on the Sky, Feet on the Ground
An ebook filled with information and classroom activities covering several astrological topics such as the Earth's rotation and the solar system. Many tips and teaching tools are available to aid in discovering what the sky has to offer.