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Ant On A Table: What invisible forces are acting on the ant?___________________________________________________________
What is force?What is Gravity?                   https://www.youtube.com/watch?v=JlLSc3tZAyc.
___________________________________________________________
Humans have been building bridges for many hundreds of years have been          building bridges but we weren’t the first ...
Tension forces PULLING OUTCompression Forces   PUSHING IN
Making paper  bridges
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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
  • Transcript of "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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