How Do We Know the Half Life of Uranium and Can You Collect Gold Once It's Dissolved in Acid?

Participate in a little chemistry Q and A! Part of a larger series on reactions, an informative lesson takes questions from viewers and crafts responses. The video explains how we arrive at an accurate half-life of a radioactive element and how to retrieve gold dissolved in acid using electrolysis.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Have pupils construct questions to submit to the American Chemical Society for possible future videos
  • View the two videos the questions originated from prior to watching the lesson
Classroom Considerations
  • Assumes viewers have experience with dissolving gold in acid
  • This resource is only available on an unencrypted HTTP website. It should be fine for general use, but don’t use it to share any personally identifiable information
Pros
  • Images provide important visual reinforcement of the content
  • Answering actual viewers questions adds relevance to the entire series
Cons
  • None