Task: At this station, you will be finding out which of several food samples contain fats in the form of oils.

MATERIALS

6 brown paper squares

4 food samples

dropper bottle with oil

dropper bottle with water

waste cup

paper towels

data sheet

bag samples A and B

DIRECTIONS

1. Place one brown paper square below the dropper bottles and the foods on your data sheet.

2. Place one drop of water on a brown paper square.

3. Describe what happened to the brown paper square with the drop of water.
   

4. Place one drop of oil on a brown paper square.

5. Describe what happened to the brown paper square with the drop of oil
   

6. Rub each of the foods against the brown paper square.

7. Using the information from your paper squares, determine which food samples contain oil.

8. According to your tests, write the names of the food samples that contain oil in the space below.
   

9. What evidence on the brown paper squares showed you that some food samples contain oil?
   

10. When you are finished making observations, throw the brown paper squares that you used for testing in the waste cup.

11. Look carefully at the bag samples marked A and B. In the space below, explain why you think potato chips are sold in bag type A and not bag type B.
    

NYS Alternative Science Assessment Project
NSF Grant #MDR-9154506
Copyright 1993
The University of the State of New York
The State of Education Department
Albany, NY 12234