Telephones and Bridges

Two of the greatest inventions built on this planet- Bridges to help us get across seas, mountains, roads, and


Telephones- well would we have mobile phones if the first phone was never invented?
This week we made telephones and understood the concept of sound waves and how they work. How sound waves vibrate through the cups and string just to get the message across to the other person.






We looked at how bridges were constructed and how support is crucial to make bridges. We looked at factors that could effect the stability of bridges.








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