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Check your knowledge! Take our fun quiz for the advanced Knuckleball Section of the Sports Chapter of our textbook! Follow the instructions and then click on the "Check it!" button for each question.

Advanced Activities: Knuckleball

1.	What does the knuckleball do? (Choose one answer.)
	It spins through the air. It moves back and forth through the air. It "dances" through the air on the way towards the batter. It curves down to the ground.

2.	In the knuckleball pitch the air rushing against the baseball and it's stitches causes the air flow to change and creates a "dancing" motion. (Check the correct answer.)
	True. False.

3.	What tricks can be used to help throw a knuckleball pitch? (Check any answers that apply.)
	scuffing the surface of the ball. putting vaseline on the ball. putting more stitches on the ball. the pitcher spitting on the ball. throwing the ball with a twist or snap of the wrist.

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