On 10/22/13, the Kinder River Spies and the 1st/2nd Grade River Spies participated in a water feature scavenger hunt. Our detectives used clues and compass directions to find water features in close proximity to Edison Elementary. I also wanted to gauge the River Spies endurance levels for a possible field outing - by foot - to Amazon Creek. We may have to wait on that one!
The Kinder River Spies did a mini scavenger hunt, so we also had time to explore the pH scale with some common household items. We tested the following substances of varying pH: lemon juice (2), milk (6.5), water (7), baking soda (8.5), and soap (10.0).
pH stands for "the power of hydrogen". On a scale from 1-14, one represents the most acidic and fourteen represents the most alkaline. Pure water has a pH of 7.0. Most aquatic animals live in water with a pH range of 6.5-8.2.