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Bridges 3 4
- 1. Ant On A Table: What invisible forces are acting on the ant? ___________________________________________________________
- 2. What is force? What is Gravity? https://www.youtube.com/watch?v=JlLSc3tZAyc.
- 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=IBTjQMtbViU Ant societies have division of labor, communication between individuals, and an ability to solve complex problems
- 5. Tension forces PULLING OUT Compression Forces PUSHING IN
- 6. Making paper bridges
Notas del editor
- 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