https://padlet.com/540541/pr1k329oih5h Made with good vibes en-us 2016-09-06 20:28:45 UTC 2025-10-28 07:29:58 UTC hello@padlet.com 540541 https://padlet.com/540541/pr1k329oih5h/wish/122270190 Foundations are usually made of cement blocks, cinder blocks, or poured concrete. They must be properly laid to keep them from sinking, shifting, cracking, or allowing excessive moisture to enter and possibly damage the completed structure. http://school.eb.com/levels/middle/article/273396

]]> 2016-09-07 20:26:05 UTC https://padlet.com/540541/pr1k329oih5h/wish/122270190 540541 https://padlet.com/540541/pr1k329oih5h/wish/122271582 First, concrete footings are poured into forms. A footing must extend below the frost line of the ground so that frost will not cause it to heave and crack. The width and thickness of the footing are determined by the weight of the building and the nature of the soil. Most building codes in the United States require concrete foundations, though wood foundations treated with wood preservatives are allowed in some areas. http://school.eb.com/levels/middle/article/273396]]> 2016-09-07 20:34:16 UTC https://padlet.com/540541/pr1k329oih5h/wish/122271582 540541 https://padlet.com/540541/pr1k329oih5h/wish/122588950 Think about the different ways you can bend or change the shape of straws, pipe cleaners, and paper clips. You may cut these items, but cannot use tape or other materials to connect them together.http://tryengineering.org/lessons/tower.pdf]]> 2016-09-08 20:01:27 UTC https://padlet.com/540541/pr1k329oih5h/wish/122588950 540541 https://padlet.com/540541/pr1k329oih5h/wish/122591215 2016-09-08 20:09:07 UTC https://padlet.com/540541/pr1k329oih5h/wish/122591215 540541 https://padlet.com/540541/pr1k329oih5h/wish/122592894

We could do something like this?
www.pinterest.com/pin/56787645273729439/]]> 2016-09-08 20:16:15 UTC https://padlet.com/540541/pr1k329oih5h/wish/122592894 540541 https://padlet.com/540541/pr1k329oih5h/wish/122593243

I found this picture on https://www.teachengineering.org/activities/view/cub_brid_lesson01_activity2 I think we could make layers and layers of this and it could be really stable.]]> 2016-09-08 20:18:41 UTC https://padlet.com/540541/pr1k329oih5h/wish/122593243 540541 https://padlet.com/540541/pr1k329oih5h/wish/122594721

We need this tape. http://www.ehow.com/how_7808514_make-strong-straw-towers.html]]> 2016-09-08 20:26:42 UTC https://padlet.com/540541/pr1k329oih5h/wish/122594721 540541 https://padlet.com/540541/pr1k329oih5h/wish/122595736

Build a base Tape together five straws to make the base of the tower. Make the base into a pentagon shape.

Put together the sides of the towerBuild the sides of the tower by connecting five sets of seven straws into a single post. Build a supporting center post by connecting one set of six straws. Connect by cutting a one-inch slot into one straw, slipping the cut end into another straw and taping the connections together

Build the sides of the tower and supportTape one end of the five posts to each corner of the pentagon base by using plenty of tape. Take five new straws, and cut 1/4 off each of them. Use the 3/4-straws, and tape one end to the center post and one end to each of side posts about 4 inches up from base. Do the same with the five 1/4-straws about 4 inches from the top of the tower. Take three more straws, cut them in half and use five of the half-straws to repeat this process in the center of the tower.

https://www.reference.com/art-literature/build-strong-straw-towers-1fd53bc93c579eb1

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http://rocket.fargo.k12.nd.us/access/web?id=2d9981a8-7b81-11e6-b5df-00e0ed406d16

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