Forces

http://www.pbs.org/wgbh/buildingbig/lab/forces.html

http://www.pbs.org/wgbh/buildingbig/lab/shapes.html

http://www.brad.ac.uk/acad/civeng/marketing/structures/page49.htm

Loads

http://www.pbs.org/wgbh/buildingbig/lab/loads.html

http://www.brad.ac.uk/acad/civeng/marketing/structures/page52.htm

Materials

http://www.pbs.org/wgbh/buildingbig/lab/materials.html

http://www.brad.ac.uk/acad/civeng/marketing/structures/page63.htm

http://www.brad.ac.uk/acad/civeng/marketing/structures/page16.htm

http://www.science/org.au/nova/059/059act.htm

Composites:  http://www.science.org.au/nova/059/059act.htm

Cables:  http://www.pbs.org/wgbh/buildingbig/educator/act_hang_ho.html

Characteristics of Structures

Bridges:  http://www.pbs.org/wgbh/buildingbig/bridge/index.html

              http://www.howstuffworks.com/bridge1.htm

Domes:  http://www.pbs.org/wgbh/buildingbig/dome/index.html

Skyscrapers:  http://www.pbs.org/wgbh/buildingbig/skyscraper/index.html

Dams:  http://www.pbs.org/wgbh/buildingbig/dam/index.html

Tunnels:  http://www.pbs.org/wgbh/buildingbig/tunnel/index.html

Examples of Structures

http://www.pbs.org/wgbh/buildingbig/wonder/index.html

http://www.cibernet.it/thebox/pisa/tower.html

Engineering Challenges and Disasters

http://www.matscieng.sunysb.edu/disaster/

http://www.fema.gov/mit/bpat/bpat006.htm

Activities and Demonstrations

http://www.pbs.org/wgbh/buildingbig/abt_chall.html

http://www.pbs.org/wgbh/buildingbig/educator/act_index.html

http://www.exploratorium.edu/scale/straws.html

http://www.school.discovery.com/lessonplans/programs/amazingskyscrapers/index.html

http://www.school.discovery.com/lessonplans/programs/bridges/index.html

Tunnels:  http://www.pbs.org/wgbh/buildingbig/educator/act_middle_ho.html

Cables:  http://www.pbs.org/wgbh/buildingbig/educator/act_hang_ho.html