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.

Concepts

uranium, gold, half lives, acids

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Additional Tags

science

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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 video is hosted on YouTube

Pros

• Images provide important visual reinforcement of the content
• Answering actual viewers questions adds relevance to the entire series

Cons

• None

Common Core

SL.11-12.2 L.9-10.2.a RST.9-10.7 RST.11-12.7