Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

The pH scale is used to measure acidity and alkalinity levels. It measures the presence of positively and negatively charged hydrogen ions in a particular solution. The higher the hydrogen ions, the ...

An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

Make an acid-base indicator. Dr Yan uses some very colourful science to find out what's acidic in his kitchen. Take 1/4 red cabbage. Finely slice the cabbage. Put all the chopped-up cabbage into a ...

The difference between a 20 year old and a 40 year old physically is that there are more of accumulated acidic wastes at 40 than at 20. When we are born we have the highest alkaline mineral ...

For some people, eating highly acidic foods like citrus fruits, tomatoes, onions, chocolate, coffee, and peppermint causes heartburn or gastroesophageal reflux disease (GERD). Eating a diet of ...

Students will be able to explain that if two substances cause turn a pH indicator different colors, they must be different substances. Students will be able to explain that the color that a substance ...