Using Your Senses Activity

Question:

Which senses will be most useful for identifying various white powders?

Prediction:

Rank the value of each sense for helping you identify the substances listed below.

Most valuable 2nd most 3rd most 4th most Least valuable
         

Materials:

granulated sugar, powdered sugar, flour, cornstarch, baking soda, rice, tapioca, salt

Procedure:

  1. Fill in the table below, recording your observations of each of the substances. Use objective, descriptive words such as: gritty, no odor, dull white. Don't use subjective words such as: nasty, boring.
     
    Substance Color Taste Odor Texture
    1
     
           
    2
     
           
    3
     
           
    4
     
           
    5
     
           
    6
     
           
    7
     
           
    8
     
           

  2. From your observations, identify which substances are each of the eight plates.
    1.  3.  5.  7. 
    2.  4.  6.  8. 
 

Analysis:

Answer these questions in complete sentences.

  1. Why couldn't you identify each of these substances by its color alone?
     
  2. Why was your sense of smell not always useful?
     


  3. What sense did you use to distinguish between sugar and flour?  How did you do this?
     




  4. What sense did you use to distinguish between sugar and salt?  How did you do this?
     




  5. What sense did you use to distinguish between baking soda and cornstarch?  How did you do this?
     




  6. Which substance was the most difficult to identify?   What helped you make the correct identification ?
     




  7. How would you now rank the value of each sense for helping you identify the substances?
    Most valuable 2nd most 3rd most 4th most Least valuable