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The materials required for this science fair project are:

-    10 approval slips, to be signed by the children’s parents
-    10 preschoolers age 3 to 4
-    1 classical music CD
-    1 CD of sentimental songs (ballads)
-    1 portable stereo with a CD player
-    1 stopwatch


1.    The independent variable of this science fair project is the type of music played – classical music or sentimental songs. The dependent variable is the time needed for the children to fall asleep. This is determined using a stopwatch The constants (control variables) are the age of the children, the gender of the children and the conditions in the bed room (bed type and size, airconditioning, lighting,  etc).

2.    Obtain permission  from the management of the nursery to conduct this experiment  Should this be approved, send out permission slips to the parents of the children to obtain their permission for involving their children in the experiment.

3.    Request that the nursery   maintains exactly the same type and intensity of activities for the next 10 days so that the children’s sleep patterns will not be affected by their level of tiredness. Advise the parents to ensure that their children get approximately  the same amount of sleep every night.

4.    Play classical music during the children’s  afternoon nap time on every odd day(Days 1, 3, 5, 7 and 9). Ensure that the music is audible, but not too loud or it might serve to distract or irritate the children. They are made to sleep in the same place and the same, comfortable environment and the time taken for each child to fall asleep  is recorded in the table  provided below.

5.   Play the sentimental ballads during the children’s afternoon  nap time on every even day (Days 2,4,6,8 and 10). Ensure that the music is played at the same volume as before. The time taken for each  children to fall asleep  is recorded in the table  provided below

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Complexity level:
Project cost ($):
Time required:
1 hour to prepare, 10 days for the science project experiment
Material availability:
Easily found
Safety concerns:

Basic safety requirements