Product Description
Video and lesson investigations on the topic of air pressure. Key concepts include:
- Much scientific understanding has come bout form the research work of scientists over hundreds of years.
- When scientists make new discoveries or have new ideas, these ideas re tested to see if they are valid.
- Otto von Guerike’s famous experiment in 1652 showed that air pressure was such a strong force that it could hold two hollow metal hemispheres together when the air inside had been removed.
- Even horses could not pull them apart.
- In science, discoveries found through experiments must work every time that the experiment is repeated to be considered valid.
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