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Forwards and Backwards: pH and Indicators
Source Institutions
Visitors prepare six solutions combining vinegar and ammonia that range incrementally from acid (all vinegar) to base (all ammonia).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-332.gif?itok=7MNxhtRN)
Jell-O Model of Microfluidics
Source Institutions
This activity uses Jell-O(R) to introduce learners to microfluidics, the flow of fluids through microscopic channels.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-890.png?itok=pncJRHgn)
Electrolysis
Source Institutions
Using electrolysis, learners produce hydrogen gas and oxygen gas from water molecules in a solution.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-235.jpg?itok=APMqQFfs)
pH Scale
Source Institutions
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.