Wednesday, June 1, 2011

Bridge Design

I learned that a beam bridge is made out of concrete and that is cool
Posted by at 2:51 PM
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2 comments:

  1. HeadJune 1, 2011 at 6:42 PM

    You are correct Susanna they are made from concrete. Why do you think they are made from concrete?

    ReplyDelete
  2. Room 11August 23, 2011 at 11:42 AM

    I know that a beam bridge is made out of
    concrete because it helps it stand up.
    Susanna

    ReplyDelete

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