Esperanza Middle School
Lexington Park , MD, USA

Online Contest:
Zip A Zipper
Online Division I - Ages 11 - 14 (Middle School)
Team Leader: Ms. Meny
Team Members: 5
Invitations: 0

What we're studying:
How to make machines out of simple, ordinary materials found in our house.

Our Team Leader's favorite quote:
A small group of thoughtful people could change the world. Indeed, it's the only thing that ever has -- Margaret Mead

Why we think we should win:
We would like to make our school proud and our favorite teacher Ms. Meny.

Suggestion for next year's challenge:
We would like to plant a tree for our next machine.

Hey, we are the Rat Squad. We would like to welcome you to our website. We're very excited to have you watch our presentation of our Rube Goldberg machine! Enjoy!

Our Step List

1. Shake the car to energize

2. Pull the string tied to the activation lever releasing the car

3. Car pulls out retention bar releasing Train

4. Train traverses track striking ball

5. Ball falls in bucket

6. Extra weight lifts fishing weight using pulley

7. Fishing weight strikes marble

8. Marble traverses tracks

9. Marble strikes lever bar

10. Lever bar starts dominoes

11. Last domino releases pendulum

12. Pendulum strikes “shooter” marble

Our Close-ups: Photos

Our Close-ups: Favorite Step

Our Close-ups: Task Completion

Our Machine Explaination and Walkthrough

Our Machine Run Videos

Machine Run #1
Machine Run #2