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The materials required for this science fair project:

-    12 students (age 10)  who do not take breakfast daily
-    50 random unique objects – e.g. orange, watch, calendar, pen, table, umbrella, banana, book, mirror, etc.
-    1 stopwatch
-    24 sheets of paper and pencils
-    Breakfast supply for 12 students for a period of 21 days (e.g. bread, cereal, milk)
-    2 curtains, bedsheets or large pieces of material


1.    For this science fair project, the independent variable is whether the students have had breakfast every day. The dependent variable is the ability of the students to recall a list of objects they had previously seen. This is determined by asking them to write down the names of the objects that they had seen. The constants (control variables) are the number of objects, the time given to look at the objects and the time given to write down the list of objects.

2.    Separate the objects into 2 groups of 25 each. Arrange the first set neatly at the front of a classroom, and the second set at the back of the classroom. Then, cover each set of objects with a curtain so that none of the participants will be able to see them before the test.

3.    Interview some students and select 12 students who do not have their breakfast every morning.

4.    Bring the 12 students to the classroom and remove the curtain at the front of the classroom to reveal the first set of 25 objects to the students. Allow them to view the objects for 2 minutes while an assistant notes the time with a stopwatch. Cover the objects after 2 minutes and give each student a sheet of paper and a pencil for them to write down a list of what they recall seeing. Collect the papers after 10 minutes. Record the number of correct objects recalled by each participant in a table, as shown below.

5.    Give all 12 participants free breakfast for the next 21 days. On the 21st day, repeat step 4, recording the new results in a table, as shown below.

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Time required:
1 hour for preparation, 21 days for experiment
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