What is pH and where does it come from? Science superstars take their understanding of acids and bases to another level using a video from JFR Science. The narrator builds on prior knowledge to show viewers how to use what they already know to help them understand pH and the ion product constant of water.

Concepts

acids and bases, water, concentration, ions, logarithms, solutions

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Additional Tags

science

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Instructional Ideas

• Use the video to begin a lesson on dissociation constants
• Have the class put the relationship between pH and water's dissociation constant into their own words to check for misconceptions

Classroom Considerations

• Make sure pupils have a good understanding of acid-base chemistry before taking on dissociation constants and the ion product constant

• This video is hosted on YouTube

Pros

• Presents content so viewers can truly see how ion concentrations are related
• Fun facts interspersed throughout the video keep engagement high

Cons

• None

Common Core

SL.9-10.2