Megan Chirby Community Links High School RET 2009 Teaching Modules University of Illinois at Chicago December 12, 2009 RET 2009 Program NSF EEC (A. Linninger, PI)

 US Air Force concerned about jet fuel pollutants  Oxidation chemistry of major components of JP-8 fuel unknown

 Fuel source - Xylene  Low O 2 flow  Diluted by CO 2 and N 2 gas

 SWBAT define and discuss complete and incomplete combustion  SWBAT predict the products of a combustion reaction  SWBAT report experiment findings in a laboratory report

 Understand that in chemical reactions, atoms combine into molecules by means of bonds (e.g., by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic bonds).  Understand that the conservation of atoms in a chemical reaction, as summarized in a balanced chemical equation, leads to the ability to calculate theoretical masses of reactants and products.  Understand how to read, interpret, and balance chemical equations.

 11.A.3a Formulate hypotheses that can be tested by collecting data  11.A.3b Conduct scientific experiments that control all but one variable  11.A.3g Report and display the process and results of a scientific investigation  11.B.4f Evaluate the test results based on established criteria, note sources of error and recommend improvements.  13.A.4a Estimate and suggest ways to reduce the degree of risk involved in science activities.

 Synthesis  Decomposition  Single-Displacement  Double-Displacement  Combustion

 Complete Combustion 1.Cool Test Tube2. Extinguish3. Wash with limewater Candle

 Incomplete Combustion  Test tube with water reacts with CaC 2  Acetylene gas forms  Gas displaces water using pneumatic trough  Incomplete combustion reaction Amount of water/ acetylene gas

Section ExceedsMeetsBelow Purpose Meets standards AND hypothesizes combustion products Correctly defines the purpose of the experiment Incorrectly defines the purpose of the experiment Introduction Meets standards AND provides example of both complete and incomplete combustion Correctly defines complete and incomplete combustion; correctly balances experiment reactions Incorrectly defines complete and incomplete combustion; incorrectly balances experiment reactions Results Meets standards AND describes the relationship between the independent and dependent variable Provides a table summarizing the results of the experiment Displays an incorrect or unorganized summary of the results Conclusions Meets standards AND suggests specific improvements for future experimentation States conclusions about the dependent variable as an effect of the independent variable; correctly identifies error sources Conclusions do not relate the dependent variable to independent variable; incorrectly identifies error sources

 Dr. Kenneth Brezinsky  Dr. Brad Culbertson  Carolyn Fortson and Ilana Green-Cember  UIC  Community Links High School  NSF RET EEC (A. Linninger, PI)