This is a thin fan with brushless motor on a Hall effect switch inside. Note that it is nonreversible and red wire should be connected to the positive wire from the battery.
It has the following parameters:
Voltage: 12 V DC (works in 7 – 13.8 V range)
Current: 0.15 A
Noise level: 30 dBA
Airflow: 11.4 CFM
Size: 50 x 50 x 10 mm (2″ X 2″ X 3/8″)
Part number: EFB0512HA, made by Delta Electronics
Besides its usage as a fan this motor looks great placed next to the motor from the kit at the science fair display. It will show practical application of the brushless motors.