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This Crooke's Tube interactive also includes:
Behold, the electron is discovered! Take young scientists on a journey back through time to examine JJ Thompson's famous experiment using a Crooke's tube. Pupils manipulate the charge on the apparatus' horizontal plates, observe cathode rays, and select different metals for the electrodes.
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NGSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Plan an investigation of the three metals used as electrodes in the interactive where learners determine which appeared to produce the best results in the experiment
- Have the class discuss how Thompson was able to prove the existence of the electron through this experiment
Classroom Considerations
- Students should be familiar with atomic structure to get the most out of the resource
Pros
- Interactive includes many applications, including atomic structure, history of chemistry, and properties of elements
- The resource is very responsive to changes in the settings and executes the changes smoothly
Cons
- None