Contains maps made by Major Jedediah Hotchkiss (1828-1899), a topographic engineer in the Confederate Army.  Hotchkiss created detailed battle maps of the Shenandoah Valley; somewere used by Generals Lee and Jackson.  The collection includes maps from post-war years -- maps with information about railroads, minerals and mining, geology and history (mostly of Virginia and West Virginia).  (LOC)

http://memory.loc.gov/ammem/collections/maps/hotchkiss/ 

"Smithsonian Source: Colonial America"
Offers primary sources and tools for using them in the classroom.  Watch an anthropologist examine skeletons for clues to daily life in Jamestown.  Find lessons on the Boston Massacre, Stamp Act, patriot women, Pocahontas, and money. Use questions -- built around primary documents -- to explore the clashing views of revolutionary colonists and loyalist colonists.  Examine the political, religious, economic, and social reasons for the Revolution.  (SI)

http://www.smithsoniansource.org/display/topic/viewdetailshis.aspx?TopicId=1004

"World War II Military Situation Maps, 1944-1945"
Contains maps showing troop positions beginning on June 6, 1944, to July 26, 1945.  Starting with the D-Day Invasion, the maps give daily details on the military campaigns in Western Europe, showing the progress of the Allied Forces as they push towards Germany.  Some of these 416 maps and 115 reports were used by U.S. commanders.  (LOC)

http://memory.loc.gov/ammem/collections/maps/wwii/

Science Resources

"NASA Connect: Sun-Earth Day"
Features teacher guides and other resources for studying sun- earth connections and celebrating Sun-Earth Day.  In "Ancient Observatories," students measure the movement of the sun and find solar noon.  In "Venus Transit," students learn about scale models and the "astronomical unit," which is used to determine distances from the earth to other planets and stars. In "Dancing in the Night Sky," students learn about the Aurora Borealis, or Northern Lights.  (NASA)http://sunearthday.nasa.gov/2006/events/broadcasts.php 

"Path of Totality: Measuring Angular Size and Distance"
Examines the natural phenomena that create a total eclipse. NASA scientists and engineers introduce a satellite used to make artificial eclipses in order to learn about the sun's corona.  Students measure the angular size and predict the angular distance of objects in the sky.  (NASA)
http://connect.larc.nasa.gov/programs/2005-2006/path_of_totality/ 

"The Structures of Life"
Takes us into the world of "structural biology" -- a branch of molecular biology that focuses on the shape of nucleic acid sand proteins (the molecules that do most of the work in our bodies).  Learn about the structures and roles of proteins, tools used to study protein shapes, how proteins are used in designing new medications (for AIDS and arthritis), and what structural biology reveals about all life processes.  Find out about careers in biomedical research.  (NIH)http://publications.nigms.nih.gov/structlife/ 

"Sun-Earth Day"
Is a series of programs and events throughout the year that culminates with a celebration of the spring equinox. "Eclipse: In a Different Light," this year's theme, shows how eclipses have inspired people to study the sun-earth-moon system.  Join this journey of exploration and discovery in preparation for a total solar eclipse.  (NASA)
http://sunearthday.nasa.gov/