pH Scale: Basics
Topics
- pH
- Acids
- Bases
- Dilution
Description
Test the pH of everyday liquids such as coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Investigate how adding more of a liquid or diluting with water affects pH.
Sample Learning Goals
- Determine if a solution is acidic, basic or neutral
- Place acids or bases in order of relative acidity or basicity
- Relate liquid color to pH
- Predict how solution volume or dilution with water will affect the pH of acids or bases
Teacher Tips
Overview of sim controls, model simplifications, and insights into student thinking ( PDF ). |
Teacher-Submitted Activities
Title | Authors | Level | Type | Subject | ||
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How Does Dilution Affect pH Levels of Acids and Bases? | Jocelyn Gianatasio | K-5 MS |
HW Lab |
Chemistry | ||
How do PhET simulations fit in my middle school program? | Sarah Borenstein | MS | Other | Earth Science Chemistry Physics Biology |
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Alignment of PhET sims with NGSS | Trish Loeblein | HS | Other | Chemistry Earth Science Physics Biology |
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MS and HS TEK to Sim Alignment | Elyse Zimmer | HS MS |
Other | Biology Physics Chemistry |
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Exploring pH of Common Substances | Alexandra Freeman | HS MS |
HW Guided Lab |
Chemistry Other |
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Discovering Acids and Bases | Jacalyn Fiechter | K-5 | Guided | Chemistry Physics |
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Investigating the pH level of the 11 different basic substances | Mary Ann Patangan, Ivy Grace T. Coronel | K-5 MS |
HW Lab |
Chemistry | ||
Preguntas de razonamiento para todas las simulaciones HTML5 | Diana López | UG-Intro MS K-5 Grad UG-Adv HS |
Discuss HW |
Astronomy Chemistry Mathematics Physics |
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¿Cómo una disolución afecta los niveles de pH en ácidos y bases? | Joselyn Gianatasio, traducción Diana López | HS MS |
Guided | Chemistry | ||
Estudo do pH | Felipe Alves Silveira | MS HS |
Discuss Lab |
Chemistry | ||
PLANO DE AULA PARA O ENSINO MÉDIO | Felipe Alves Silveira e Ana Karine Portela Vasconcelos | MS HS |
Guided | Chemistry |
The new HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.
iPad:
iOS 11+ Safari
iPad compatible sims
Android:
Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.
Chromebook:
Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims
Windows Systems:
Microsoft Edge and Internet Explorer 11, latest version of Firefox, latest version of Google Chrome.
Macintosh Systems:
macOS 10.9.5+, Safari 9+, latest version of Chrome.
Linux Systems:
Not officially supported. Please contact phethelp@colorado.edu with troubleshooting issues.
Design Team | Third-party Libraries | Thanks To |
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