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Secrets of Lost Empires
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	Article Images Mail Map Newsflash Online Activity QTVR Resources Teacher's Guide TV Program TV Transcript Video footage
	Stonehenge Briefly summarizes construction challenge of transporting and lifting Stonehenge's massive stones. http://www.pbs.org/nova/stonehenge/ Inca Briefly summarizes construction challenge of how the Incan people built massive stone fortresses. http://www.pbs.org/nova/inca/ Obelisk Briefly summarizes construction challenge of quarrying, transporting, and raising an obelisk weighing up to 450 tons. http://www.pbs.org/nova/obelisk/ Colosseum Briefly summarizes construction challenge of erecting a canvas awning to cover a 600-foot diameter amphitheater. http://www.pbs.org/nova/colosseum/
	Stonehenge, Q & A An expert provides answers to e-mailed questions about how the site was used and how the stones were moved, raised, and quarried as well as questions about the use of the site. http://www.pbs.org/nova/stonehenge/qanda/questions.html http://www.pbs.org/nova/stonehenge/qanda/ Inca, Q & A An expert provides answers to e-mailed questions about life of the Inca and possible methods of Andean construction. http://www.pbs.org/nova/inca/qanda/questions.html http://www.pbs.org/nova/inca/qanda/ Obelisk, Q & A An expert provides answers to e-mailed questions about ancient Egyptian society and possible methods to raise an obelisk. http://www.pbs.org/nova/obelisk/qanda/questions.html http://www.pbs.org/nova/obelisk/qanda/ Colosseum, Q & A An expert provides answers to e-mailed questions on life in Roman cities during the Colosseum's construction and how the Colosseum and awnings were constructed. http://www.pbs.org/nova/colosseum/qanda/questions.html http://www.pbs.org/nova/colosseum/qanda/
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	Teacher's Guide Presents series overview, construction challenge summaries, pre- and post-watching ideas, and links to activities for Stonehenge, Inca, Colosseum and Obelisk programs. http://www.pbs.org/wgbh/nova/teachers/programs/2403_sle1ston.html Stonehenge Teacher's Guide Introduces the activity instructions and provides a student activity sheet and suggestions for evaluation. Activity: Students construct a cardboard trilithon to learn about an object's center of gravity. http://www.pbs.org/wgbh/nova/teachers/activities/2403_sle1ston.html http://www.pbs.org/wgbh/nova/teachers/activities/2403_sle1ston_01.html http://www.pbs.org/wgbh/nova/teachers/activities/2403_sle1ston.html#answer Inca Teacher's Guide Includes activity instructions, a student activity sheet, and suggestions for evaluation. Activity: Students learn the basics of rope making and civil engineering by constructing 'bridge cable' out of newspaper. http://www.pbs.org/wgbh/nova/teachers/activities/2404_sle1inca.html http://www.pbs.org/wgbh/nova/teachers/activities/2404_sle1inca_01.html http://www.pbs.org/wgbh/nova/teachers/activities/2404_sle1inca.html#answer Obelisk Teacher's Guide Presents activity instructions, a student activity sheet, and suggestions for evaluation. Activity: Students use a ruler to construct a simple machine to learn about mechanical advantage. http://www.pbs.org/wgbh/nova/teachers/activities/2405_sle1obel.html http://www.pbs.org/wgbh/nova/teachers/activities/2405_sle1obel_01.html http://www.pbs.org/wgbh/nova/teachers/activities/2405_sle1obel.html#answer Colosseum Teacher's Guide Provides activity instructions, a student activity sheet, and suggestions for evaluation. Activity: Student teams are challenged to design a system to pass notes back and forth using only the materials provided. http://www.pbs.org/wgbh/nova/teachers/activities/2406_sle1colo.html http://www.pbs.org/wgbh/nova/teachers/activities/2406_sle1colo_01.html http://www.pbs.org/wgbh/nova/teachers/activities/2406_sle1colo.html#answer
	Stonehenge Transcript http://www.pbs.org/nova/transcripts/2403stone.html Inca Transcript http://www.pbs.org/nova/transcripts/2404inca.html Obelisk Transcript http://www.pbs.org/nova/transcripts/2405obelisk.html Colosseum Transcript http://www.pbs.org/nova/transcripts/2406col.html

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