From classbrain.com

Explain It To Me (for Kids)
Powerful engines
By ClassBrain Staff
Feb 25, 2011, 6:48pm



How fire engines work - This page tells you how the fire truck, the pump, the hose and the ladder work. Grab a seat and find out why fire engines are the ultimate mobile toolbox.
Source: HowStuffWorks.com
How airplanes work – To learn about aerodynamic forces, the parts of an airplane, how the direction is controlled, how the airplane sensors work and interesting things about the wind, prepare for liftoff!
Source: HowStuffWorks.com


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