Measuring pH of Direct and Throughfall Rain

A Rising Tide Project for Grades 11 and 12

Standards Addressed

Classroom Activities
   pH
   Ions

Resources and Links

Glossary

Main l Classroom Activity l Objectives l Standards Addressed l Background l Methods/Teacher Guide l Rubric l Resources

Chemistry for the Technologies

 I.   Chemical Safety

A.    Include safety hazards as a part of every chemical operation

B.      Define, interpret, and apply classifications of flammability, toxicity, health, and reactivity. 

C.    Be able to read and interpret the MSDS for a particular material. 

D.    Wear or use personal protection equipment (gloves and goggles)

E.      Locate and operate emergency equipment (i.e. shower, eyewash, fire alarm, fire extinguisher, fire blanket)

F.      Be able to take appropriate measure should an accident or injury occur. 

G.   Dispose of waste in a sage and environmentally correct manner. 

II.   Operational Safety and Scientific Measurement

A.   Demonstrate reproducibility and accuracy/precision in measurement

1.      Incorporate proper safety techniques and equipment as applicable to the process.  

                        2.   Record measurements to one estimated digit.

                        3.    Determine the error and uncertainty in measurements. 

C.   Interpret graphs, charts, and tables. 

1.      Construct tables, charts, and graphs from data.

2.      Analyze and make predictions from tables, charts, and graphs.

D.   Demonstrate appropriate techniques for use of chemical lab equipment.

E.   Apply mathematical statistics. 

VII.   Acids, Bases, and Salts

A.     Classify substances as acids, bases, or salts. 

C.  Write names and formulas for common acids and bases. 

E.   Define pH and relate the definition to the ionization of water.

G.   Calibrate a pH meter and use it to measure pH.

*Note:  The competencies for course #3236, Chemistry for the Technologies, is in draft form only (as of 10/02).   A complete list of competencies, as well as detailed course instruction and modules, are on a CD.  For a copy of this CD, contact the South Carolina State Department of Education at:  http://www.sde.state.sc.us.