Explanation of all the steps:
A little lego guy (A) is released from a wooden tower down a zip line and hits the marble ball (B) down the wooden ramp (C) after the ball goes to the end of the wooden ramp it will fall into the paper cup (D) and will come out the bottom which will make it land on the set mous trap (E) once the mouse trap goes off it will hit the dominos (F) and they will all fall which will cause the marble (G) on the wood ramp to roll down and hit the next set of dominos (H) once they go off they will cause the tennis ball (I) to fall into the plastic cup (J) and out of the bottom hole onto a binder/ ramp (K) which will then hit the upside down bottle (L) at the end forcing it to be hit off the chair and onto the ground where the duck tape will catch it and make it land on its cap.
(A) Kinetic to (gravitational) Potential
When the lego man is going down (kinetic) the zip line he stops ( potential) when he hits the marble.
(E) Kinetic to Sound/ Elastic
When the marble falls (kinetic) onto the mouse trap it creates a loud sound (sound).
When the marble falls (kinetic) onto the mouse trap it the spring (elastic) closes the mouse trap.
(G)Potential to Kinetic
When the marble is still (potential) It is then hit by the dominos causing it to move (kinetic) down the ramp.