We just learned about the Cylinder in the engine block.
Another part of a car's engine block is the Cylinder Head.
The engine block cylinders are the piece that holds that pistons that move up and down.
On top of that cylinder part is the cylinder head.
This is the big metal piece that goes on top and closes in the pistons.
It also has other parts that let in fuel and take out the wasted exhaust from the piston.
(from: wikipedia - cylinder head)
Kid Facts - Blast from the past: Valve Types
