Barge Building
http://www.highhopes.com/maverickboats.html
https://ehscience.wordpress.com/category/ehso-events/barge-building/
https://ehscience.wordpress.com/2008/03/04/new-barge-building-photos/
http://www.boatsafe.com/kids/021598kidsques.htm
https://www.gvsu.edu/cms4/asset/AF5F8044-C1CA-D385-2E8007C14930B056/barge_building_activity_description.pdf
https://ehscience.wordpress.com/category/ehso-events/barge-building/
https://ehscience.wordpress.com/2008/03/04/new-barge-building-photos/
http://www.boatsafe.com/kids/021598kidsques.htm
https://www.gvsu.edu/cms4/asset/AF5F8044-C1CA-D385-2E8007C14930B056/barge_building_activity_description.pdf