Bridges 3 4

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  • At every desk there is a this hand out.
  • Here we talk about force as a push or a pull in some direction
  • For a something to be at rest the forces must balance. Demonstrate on a volunteer
  • Compression and tension forces keep ant brides together
  • A closer look
  • activity
  • Bridges 3 4

    1. 1. Ant On A Table: What invisible forces are acting on the ant?___________________________________________________________
    2. 2. What is force?What is Gravity? https://www.youtube.com/watch?v=JlLSc3tZAyc.
    3. 3. ___________________________________________________________
    4. 4. Humans have been building bridges for many hundreds of years have been building bridges but we weren’t the first ones https://www.youtube.com/watch?v=IBTjQMtbViUAnt societies have division of labor, communication between individuals,and an ability to solve complex problems
    5. 5. Tension forces PULLING OUTCompression Forces PUSHING IN
    6. 6. Making paper bridges

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