Principal Sponsors
Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time.
National Science Foundation
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
pH Scale
Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution. Switch between logarithmic and linear scales. Investigate whether changing the volume or diluting with water affects the pH. Or you can design your own liquid!
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Teaching Resources
Main Topics
- pH
- Dilution
- Acids
- Bases
Sample Learning Goals
- Determine if a solution is acidic or basic
- Place acids or bases in relative order
- Describe on a molecular scale, with illustrations, how the water equilibrium varies with pH
- Determine concentration of hydroxide, hydronium and water at a given pH
- Relate liquid color to pH
- Predict (qualitatively and quantitatively) how dilution and volume will effect the pH and concentration of hydroxide, hydronium and water
Tips for Teachers
The teacher's guide (pdf) contains tips created by the PhET team.
Teaching Ideas
| Title | Authors | Level | Type | Updated |
|---|---|---|---|---|
Concept Questions for Chemistry using PhET
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Trish Loeblein | UG-Intro HS MS |
CQs | 7/9/13 |
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pH Scale inquiry-based intro to acid-base
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Trish Loeblein | HS UG-Intro |
Lab CQs |
7/7/13 |
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PhET Sims Aligned to the Chemistry Curriculum
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Julia Chamberlain | HS UG-Intro |
Other | 7/15/14 |
| How Does Dilution Affect pH Levels of Acids and Bases? | Jocelyn Gianatasio | K-5 MS |
HW Lab |
10/29/14 |
| Acid-Base Discovery (ICP/Physical Science Level) | S. Mitchell | HS | Lab | 11/19/10 |
| Acid Base pH PhET Lab | Chris Bires | HS UG-Intro |
Lab | 5/6/11 |
| pH Sim Guided instruction | Mark Blaisdell | HS | Lab | 7/18/10 |
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pH Learning Goals by developement team (Inquiry Based)
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Trish Loeblein, Laurie Langdon | Other | Other | 7/7/13 |
| Onderzoek de pH van vloeistoffen bij volumeverandering en verdunnen | Maria Cornelisse/Henk van Lubeck | MS | CQs Lab Demo HW |
12/23/10 |
| pH척도 사용지침서 | 이화국 | HS UG-Intro |
Other Lab |
4/26/13 |
You can submit your own ideas and activities.
Related Simulations
Translated Versions:
Software Requirements
| Windows | Macintosh | Linux |
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Microsoft Windows XP/Vista/7 Sun Java 1.5.0_15 or later
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OS 10.5 or later Sun Java 1.5.0_19 or later
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Sun Java 1.5.0_15 or later
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Credits
| Design Team | Third-party Libraries | Thanks To |
|---|---|---|
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