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PhET Interactive Simulations University of Colorado Boulder
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
pH scale basics
With this simulation students can test the pH of everyday liquids such as coffee, spit, and soap to determine whether each is acidic, basic, or neutral. They can also investigate how adding more of a liquid or diluting with water affects pH. Sample learning outcomes include:
- Determine if a solution is acidic, basic or neutral
- Place acids or bases in order of relative acidity or basicity
- Relate liquid colour to pH
- Predict how solution volume or dilution with water will affect the pH of acids or bases
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