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The materials required for the science fair project:

-    A CD player
-    A CD containing recordings of random musical notes
-    A musical keyboard,organ, or piano
-    A pair of earphones
-    1 sheet of small white labels
-    1 black marker
-    5 pairs of earplugs


1.    For this science fair project, the independent variable is listening to the musical note in the left ear only, right ear only and both ears. The dependent variable is the number of correct notes recognized by the participants. This is determined by comparing the musical notes that the participants listened to with the keyboard note selected by the participants. The constant (control variable) is the number of notes tested.

2.    Select ten non-musically-trained participants to take part in this experiment.

3.    Number all the keys on the musical keyboard with the white labels and marker.

4.    Have all the participants wear earplugs in their right ears. Play 10 randomly selected musical notes recorded on the CD and allow participants to listen to the audio using their left ears only. After each note is played, ask the participants to select the key on the musical keyboard that corresponds to the musical note that was just played. Record the total number of correct keys selected by each participant.

5.    Repeat step 4, but have the participants listen to the CD with the earplugs in their left ears, then with no earplugs. Record the results in a table, as shown below.

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