Quiz: What is the pH scale?
Let's take a fun quiz on the pH scale:
Q1. what is measured using the ph scale?
A1. Both - A ph scale (of 0-14) is used to measure the acidity or basicity of a solution.
Q2. WHAT DOES A PH OF 9 MEAN?
A2. The substance is a base - A pH of 9 is above 7 which means that the substance is alkaline.
Q3. WHAT ITEM IS ACIDIC?
A3. LEMONS - Lemons are acidic and have a ph below 7.
If you want to learn more about pH scale, watch our video: • What is a pH scale?
Some facts about pH scale:
A ph scale is used to measure the acidity or basicity of a solution. The scale runs from 0 to 14.
Anything above ph of 7 is basic; while pH below y is acidic. A substance of ph of exactly 7 is called neutral.
Products like lemons, orange juice, and vinegar are acidic. Human skin has a ph of around 5
We can measure ph by using indicators like litmus paper. Or we can use electronic devices such as ph meters.
In this video, we explain a few examples of ph levels and how to measure the ph of a substance.
If you liked this video and would like us to make a video on any science topic, please let us know in the comments. Subscribe and hit the notification button for future videos :)