The Tests of Fluids for Excess Glucose, Amino Acids and Salicyclic Acid

Russell C. Osantowski           Carter
                                5740 S. Michigan
                                Chicago IL 60637
                                312-947-7160 

Objective: 

6th to 12th grade level 
To introduce students to the tests, and to provide hands on experience in 
determining whether these tests apply to the fluids involved.  

Apparatus Needed:
    
 (For a Class of 14 Students.)
Chemicals are an amino acid, glycine, for the first test (chromatography), 
Benedicts solution to test for excess glucose (glucose needed), and iron 
chloride to test for salicyclic acid which are also needed. 

Equipment:

8 strips of Whatman No. 4 chromatography paper about 20 cm long
Twenty-five 25 x 200 mm test tubes 
5 scissors
5 test tubes 
5 rulers     
5 paper clips  and 14  clear plastic cups with blank labels on bottoms.
 
Recommended Strategies:

1. Explain that 1 of every 2 students will take their cup out of the box that 
has their name on it with only their right hand and then they will come up to 
the table and set it down and pour in the amount of liquid that you state should 
be poured in it.  Then they immediately go back to their seats. 

2.Explain who your 2 helpers represent according to the attached handout.

3 Have helper explain  what their roles are in this experiment.

4. Helper passes out attached sheet after class sings "For He's a Jolly Good 
Fellow." 

5. Divide class into groups of 4 to do one of attached 3 experiments.

6. Have them count off 1, 2, 3, 4, to be the recorder, reporter, director, 
collector-experimenter.