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1
A Mystery
Ken Whiteley
2
Rolling Along
3
Moving Things
4
It Takes Force
5
Up and Down an Incline Plane
6
A Wedge
7
Friction
8
Tools Are Cool
9
A Circle and a Ball and a Box and a Square
10
Numbers On My Mind
11
Count By Fives
12
Big Wheel, Little Wheel
13
Try Again
14
Energy
