Background information and slideshow presentation on creating the Origin of Species scientific manuscripts.

From the Library of Congress American Memory project, this extensive online archive contains first-person narratives of slavery and 500 black-and-white photographs of former slaves that were collected in the 1930s as part of the Federal...

Learn about big numbers with this big number list.

Transcripts of hundreds of oral histories and slave narratives from 1936-1938 collected during the Federal Writers' Project.

The Yohkoh Public Outreach Project provides images, movies, and tours depicting our nearest star, the Sun. Content includes a wealth of information, learning activities, and much more.

The Mathematics of the Mercator Projection. Site provides an illustration of Gerardus Mercator's famous world map of 1569 and the formulas he used.

Home page for a hypertext physics course on auditorium acoustics and acoustical design.

Need a photo for a project, report, multimedia presentation on plants from around the world as well as California? Find fair use images of specific plants by searching with the scientific name, common name, or location.

This page and the many pages which are indexed to focus on the behaviors of sound which characterize it as a wave. Reflection, refraction, interference, diffraction and more are clearly illustrated and explained.

Photograph of two emerald glass frogs.

A collection of government approved drawings and designs for hundreds of objects including ships, bridges, flags and more.

This is a printable PDF template page for 6 Trait Post-it Notes for Revision and Editing for descriptive and narrative writing.

The B-Reactor at Hanford Site, Washington, was the first large scale plutonium production reactor ever built. The project was commissioned under the Manhattan Project, during World War II, to develop the first nuclear weapons.

The Galileo Project of Rice University describes Florence and Tuscany during the Renaissance period. Includes a tour of Renaissance Florence, as well as descriptions of daily life.

A map of the American colonies and territories west to the Mississippi River between the end of the French and Indian War of 1763 and the beginnings of westward expansion of the trans-Appalachian colony proposed in the Vandalia Project...

This site from The Galileo Project of the Rice University provides an in depth history of the telescope and it's invention and growth over time. Too detailed for an Elementary student, but a great resource for an Elementary teacher.

This site from The Galileo Project of the Rice University provides an in depth history of the telescope and it's invention and growth over time. Too detailed for an Elementary student, but a great resource for an Elementary teacher.

This site from The Galileo Project of the Rice University provides an in depth history of the telescope and it's invention and growth over time. Too detailed for an Elementary student, but a great resource for an Elementary teacher.

This site from The Galileo Project of the Rice University provides an in depth history of the telescope and it's invention and growth over time. Too detailed for an Elementary student, but a great resource for an Elementary teacher.

This site from The Galileo Project of the Rice University provides an in depth history of the telescope and it's invention and growth over time. Too detailed for an Elementary student, but a great resource for an Elementary teacher.

This site from The Galileo Project of the Rice University provides an in depth history of the telescope and it's invention and growth over time. Too detailed for an Elementary student, but a great resource for an Elementary teacher.

This site from The Galileo Project of the Rice University provides an in depth history of the telescope and it's invention and growth over time. Too detailed for an Elementary student, but a great resource for an Elementary teacher.

This site from The Galileo Project of the Rice University provides an in depth history of the telescope and it's invention and growth over time. Too detailed for an Elementary student, but a great resource for an Elementary teacher.

A gallery of pictures of the cosmic beauty of the Sun, our Solar System, and exoplanets. Pictures include a caption of what the viewer is looking at.