The Ph Scale

Explore the range of pH using an assortment of household liquids. Scholars create their own pH indicators from cabbage and determine the pH of several liquids. To further their exploration, individuals use the same liquids to create...

Scientific studies show the older we get, the more acidic we become. The activity extensively teaches high schoolers about acids and bases. By the end of the 14th installment of 36, they can define and explain three concepts of...

The ionization of water is explained, acids and bases are defined. Young chemists learn to perform calculations using the equilibrium constant for water. The PowerPoint concludes with information about acid rain. This is a well-organized...

Studying acids and bases can be basic. Over the course of four short videos, an instructor explains the pH scale. Viewers observe a demonstration and watch the instructor solve two quiz questions in detail. 

What makes an acid different from a base? The explanation discusses the formation of an acid or base from hydrogen and hydroxide ions. The instruction ends with an overview of how this relates to the pH scale. 

The pH scale is actually based on logarithms rather than just simple numbers. The fact-filled video begins with an explanation of the auto-ionization of water. Then it describes the relationship between H+ and OH- in every solution. It...

Seeing red? If it was blue litmus paper, then it is an acid. Viewers learn about the pH scale through a video that shows how liquids may be tested by litmus paper and a universal indicator. 

Using the natural pH indicator of red cabbage juice, groups determine the pH of different everyday liquids. As they work, pupils gain an understanding of pH that may help deal with contaminants in the water supply. 

The pH scale is actually based on logarithms rather than just simple numbers. The fact-filled video begins with an explanation of the auto-ionization of water. Then it describes the relationship between H+ and OH- in every solution. It...

Students create various pH indicators and test unknown solutions to determine if they are an acid or a base. After the experiment, students take a quiz, found on a website imbedded in this lesson, on what they observed and discovered.