1. Properties of Water Chapter 2-2

2. Questions of the day 1. What is the difference between cohesion and adhesion? 2. What are some “real-life” examples of adhesion and cohesion being used?

3. Adhesion Vs Cohesion Adhesion: the attraction between molecules of a different substance Cohesion: the attraction between molecules of the same substance

4. Capillary Action is a phenomenon where liquid spontaneously rises in a narrow space such as a thin tube, or in porous materials Why do you thing this happens?

5. Surface Tension is a property of the surface of a liquid that allows it to resist an external force How does cohesion/adhesion fir in with surface tension?

6. pH Scale

7. Buffers A weak acid or base that is used to change the pH of a solution in small increments Question: Solution has a pH of 12 and we need the pH to be 10. What type of buffer would you use?

8. Water Properties Video Video of Surface Tension, Adhesion, and Cohesion

9. Questions of the day 1. What is the difference between cohesion and adhesion? 2. What are some “real-life” examples of adhesion and cohesion being used?