In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Learners will visualize the relative number of hydroxide ions and hydronium ions in a solution, and they can switch between logarithmic and linear scales. Learners will also investigate whether changing the volume or diluting with water affects the pH. They can experiment by designing their own liquids! This activity includes an online simulation, sample learning goals, a teacher's guide, and translations in over 30 languages.


  • Mathematics > General
  • Education > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


oai:nsdl.org:2200/20110926122326474T,NSDL,Units of Measurement,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-056,Mathematics,concentration,acid,pH,Materials science,hydronium ions,Data Analysis,Volume and Density,Liquids,basic,Life Science,acidic,Size and Scale,Solutions,Informal Education,Higher Education,Middle School,High School,Gathering Data,molecule,volume,logarithmic scale,base,Chemical Engineering,General science,Conducting Investigations,Chemistry,Physics,Elements and Periodic Table,Chemical Reactions,Education,Acids and Bases,neutral,linear scale,Engineering,General,hydroxide ions,Physical science,dilution,chemistry,Technology,moles



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