2.2+External+Forces+Acting+on+Structures

First Complete the VIRTUAL LAB activity and record your answers on the Lab Sheet. When you are finished, make an 8 page foldable and record your notes on the following concepts:

Page 1 - Title Page: External Forces Page 2 - Dead Loads Page 3 - Live Loads Page 4 - Strong Shapes Page 5 - Arches and Flying Buttresses Page 6 - Center of Mass Page 7 - Activities Summary (Chair lift and Pinky Power)

Page 8 - glue this page to the back of your science portfolio

Dynamic Dictionary: []

Building Big Virtual Lab Sheet:

Building Big Virtual Lab on Loads: []

Building Big Virtual Lab on Shapes: []

Booklet Foldable for your science portfolio:

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The human Arch and Flying Buttresses:

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Center of Mass:

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Why can most girls lift the chair but most boys can't:

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Chair lift (pg 29) and Pinky Power (pg 28) [|http://books.google.ca/books?id=M-ckOJiI1dkC&pg=PA29&lpg=PA29&dq=center+of+mass+chair+lift&source=bl&ots=YF5pHh187M&sig=ZuedRG22YAvNlHPFZwD6dSTuaqQ&hl=en&sa=X&ei=7k8cUa_mB6iEjALDp4HoDQ&ved=0CG0Q6AEwBw#v=onepage&q=center%20of%20mass%20chair%20lift&f=false]