pH Scale: Basics

pH Scale: Basics Screenshot
  • pH
  • Acids
  • Bases

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
Version 1.3.4

Teacher Tips

Download teacher tips PDF Overview of sim controls, model simplifications, and insights into student thinking ( PDF ).

Teacher-Submitted Activities

pH Scale inquiry-based intro to acid-base A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein HS
MS
UG-Intro
HW
MC
Remote
Lab
Chemistry
Earth Science
Biology
pH Scale Basics Remote Lab1 A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein HS
UG-Intro
MS
Remote
MC
Earth Science
Biology
Chemistry
How Does Dilution Affect pH Levels of Acids and Bases? A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Jocelyn Gianatasio K-5
MS
Lab
HW
Chemistry
How do PhET simulations fit in my middle school program? This contribution was designed by PhET. Sarah Borenstein MS Other Earth Science
Chemistry
Physics
Biology
MS and HS TEK to Sim Alignment Elyse Zimmer HS
MS
Other Biology
Physics
Chemistry
Exploring pH of Common Substances Alexandra Freeman MS
HS
HW
Guided
Lab
Other
Chemistry
Discovering Acids and Bases Jacalyn Fiechter K-5 Guided Chemistry
Physics
Investigating the pH level of the 11 different basic substances Mary Ann Patangan, Ivy Grace T. Coronel K-5
MS
Lab
HW
Chemistry
Preguntas de razonamiento para todas las simulaciones HTML5 A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Diana López Grad
UG-Adv
K-5
HS
MS
UG-Intro
HW
Discuss
Astronomy
Physics
Chemistry
Mathematics
¿Cómo una disolución afecta los niveles de pH en ácidos y bases? A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Joselyn Gianatasio, traducción Diana López MS
HS
Guided Chemistry
SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) This contribution was designed by PhET. Diana López HS
MS
Other Chemistry
Mathematics
Physics
Biology
PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) This contribution was designed by PhET. Diana López MS
K-5
HW
Discuss
Lab
Demo
Guided
Chemistry
Physics
Mathematics
Astronomy
EXERCÍCIO DE VERIFICAÇÃO DE CARACTERÍSTICAS ÁCIDO BASE Marcelo Guerra MS Discuss
HW
Chemistry
Estudo do pH Felipe Alves Silveira HS
MS
Lab
Discuss
Chemistry
PLANO DE AULA PARA O ENSINO MÉDIO Felipe Alves Silveira e Ana Karine Portela Vasconcelos MS
HS
Guided Chemistry

Language Download or Run Tips
Albanian All shqip Run now Shkalla pH: Bazat
Arabic All العربية Run now مقياس pH : إبتدائي
Basque All Euskara Run now pH eskala: oinarriak
Bosnian All Bosanski Run now pH skala: Osnove
Chinese (Simplified) All 中文 (中国) Run now pH值:基础
Chinese (Traditional) All 中文 (台灣) Run now pH Scale: Basics_酸鹼性:基礎
Czech All čeština Run now pH stupnice: základy
Danish All Dansk Run now pH-skala: Basis
Dutch All Nederlands Run now pH schaal: eenvoudig
Estonian All Eesti Run now pH-skaala: algtõed
Finnish All suomi Run now pH-asteikko: perusteet
French All français Run now Echelle pH : Basiques
German All Deutsch Run now pH Skala: Grundlagen
Greek All Ελληνικά Run now Κλίμακα pH: τα βασικά
Hebrew All עברית Run now סולם pH: בסיסי
Hindi All हिंदी Run now pH माप : मूल
Hungarian All magyar Run now pH-skála - alapok
Irish All Gaeilge Run now Scála pH: Buneolas
Italian All italiano Run now Scala del pH: introduzione
Japanese All 日本語 Run now pHの測定: ベーシック
Kannada All Kannada Run now pH ಪ್ರಮಾಣ : ಮೂಲಭೂತ
Kazakh All Kazakh Run now pH шкаласы: негіздер
Korean All 한국어 Run now pH 척도: 기초
Latvian All Latviešu Run now pH skala: Pamati
Marathi All मराठी Run now pH पातळी : प्रारंभिक
Mongolian All Монгол (Монгол) Run now pH Хуваарь: Үндсэн
Norwegian Bokmal All Norsk bokmål Run now pH-skala - grunnleggende
Persian All فارسی Run now مقیاس pH: مقدمات
Polish All polski Run now Skala pH: podstawy
Portuguese (Brazil) All português (Brasil) Run now pH: Básico da Escala
Russian All русский Run now Шкала pH: основы
Serbian All Српски Run now pH скала: основе
Sinhalese All Sinhalese Run now pH පරිමාණය : මූලික කරුණු
Slovak All Slovenčina Run now pH škála: základy
Slovenian All Slovenščina Run now pH lestvica: Osnove
Spanish All español Run now Escala pH: Intro Download teacher tips PDF
Spanish (Mexico) All español (México) Run now Escala pH: Intro
Spanish (Peru) All español (Perú) Run now Escala de pH: Conceptos Básicos
Swahili All Swahili Run now Skeli ya pH: Msingi
Swedish All svenska Run now pH-skala: Grunder
Tamil All Tamil Run now pH பெறுமானம்: அடிப்படைகள்
Thai All ไทย Run now ค่า pH: พื้นฐาน
Turkish All Türkçe Run now pH Cetveli: Temel
Ukrainian All українська Run now Шкала pH Download teacher tips PDF
Vietnamese All Tiếng Việt Run now Thang đo pH: phần cơ bản

HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.

iPad:
iOS 12+ 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, 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
  • Yuen-ying Carpenter (lead)
  • Chris Malley (developer)
  • Emily B. Moore
  • Ariel Paul
  • Julia Chamberlain
  • Katherine Perkins
  • Patricia Loeblein
  • Sharon Siman-Tov (graphic arts)
  • almond-0.2.9.js
  • base64-js-1.2.0.js
  • FileSaver-b8054a2.js
  • font-awesome-4.5.0
  • game-up-camera-1.0.0.js
  • he-1.1.1.js
  • himalaya-0.2.7.js
  • jama-1.0.2
  • jquery-2.1.0.js
  • lodash-4.17.4.js
  • pegjs-0.7.0.js
  • seedrandom-2.4.2.js
  • text-2.0.12.js
  • TextEncoderLite-3c9f6f0.js
  • Royal Society of Chemistry