Erase A Chalkboard
Online Division I - Ages 11 - 14 (Middle School)
What we're studying:
Ancient EgyptOur Team Leader's favorite quote:
"Boom!...dropped some knowledge on ya' ."Why we think we should win:
We think we should win because we gave up our Fridays after school to work on our project. We prepared by collecting scraps, recyclables, and materials from home. Our team persevered through mishaps and steps that did not work. We worked well together as a team and learned about transfer of energy.Suggestion for next year's challenge:
Make a calculator calculate
Blow a whistle
Knock down all ten bowling pinsFavorite Rube Goldberg video:
The Pharoahs present Through the Pyramid, Down the Nile, and into the Underworld.
Our Step List
STEP 1 Pull a string and Anubis pushes the marble. The marble rolls through a cardboard tube.
STEP 2 The marble drops onto a board and rolls down.
STEP 3 The marble drops through a hole, rolls behind the word Egypt in heiroglyphics, and flips the sign to the word Egypt in English.
STEP 4 The same marble then hits a domino.
STEP 5 The dominoes fall and knock a mummy and a weighted film canister off the edge.
STEP 6 The weight pulls a bike pedal which triggers two steps.
STEP 7 When the bike pedal turns it pulls up on a bottle filled with water. The water spills onto a ramp.
STEP 8 An Egyptian boat floats down our Nile.
STEP 9 At the end of its turn, the bike pedal knocks down a weighted container.
STEP 10 The container falls to the ground pulling on a string.
STEP 11 The string is connected to a big red plastic tray. The tray has erasers connected to it and when it spins it erases the white board.
Our Close-ups: Photos
Our Close-ups: Favorite Step
Our Close-ups: Task Completion
Our Machine Explaination and Walkthrough
Our Machine Run Videos