pH Card Activity
Use the red, green and blue cards to make a pH scale of 0 to 14.
Decide what side is acidic and what side is basic.
Use the large yellow cards labeled “Acids”
and “Bases” to label the two ends.
Place the other three large yellow cards (Neutral, H
increases, and OH
increases) above your
Using the large yellow cards to help you, arrange the H
concentration cards below your pH
scale, and the OH
concentration cards above your pH scale.
The remaining 15 cards are familiar solutions.
Use the following clues to place these cards in
order of their pH.
We drink acids not bases
Pure water is neutral
The strongest acid is found in your car
The strongest base unclogs your sink
We swim in this very weak base.
Our body eliminates this very weak acid.
Your tub may have a pH of 10.
Your favorite carbonated drink has 10,000 times more H
ions than water.
When you mix this white powdery substance (pH 9) with vinegar the solution bubbles.