Roxanne, age 14 of NJ wrote:
First I created a base for my Rube goldberg project. I set up a peice of wood with a clear pipe pertruding from a hole a had made in the wood. I placed a marble into the tube and it roled a foot down were it landed into a funnel. The funnel was linked to a cut out water bottle which had a lever inside it. The marble hit the lever and had a toy car fly of the other end. The car zoomed down a track and hit lots of dominos. While the dominos fell it made another car move which had a plastic hand attached to it. (Peice from the game mouse trap) The hand slammed into a text book and squeezed a brand new bottle of toothpaste to a a toothbrush. It was fun, and got me too think of Newton's laws. Have fun with science everyone!

ZOOM Fan, age 10 of Tuscon, AZ wrote:
It took a while but my invention worked! I sent a meal to my sick friend (teddy bear). when I first did it he turned up with a soggy meal.

Teddy, age 9 of Broomfield, CO wrote:
It was great! It was called, "Let There Be Music" and you'll see why. First we knock over a Gamecube game, and making a domino effect (when one domino knocks over another), it hit another Gamecube game. The second game hit a cup, and the cup had a marble in it, and the marble rolled onto Hot Wheels track. Soon, it hit a car. The car went through a loop, and it rolled onto what would have been a jump if the DVD weren't there. The DVD made a huge domino effect with DVDs, a cup, and Gamecube games going up an enormous staircase. The last game had a hand on it, which flipped the start gate thingy, sending a marble down a Marbleworks (a toy that makes marble mazes) structure. It sent a car down more track, and it hit a pencil, knocking it over. The pencil held up a board, so the board fell down and turned on the radio, so we called it "Let There Be Music".

Jake, age 11 of Port Charlotte, FL wrote:
Mine went on for approximately 5 minutes. I used over 100 dominoes, a bunch of pulleys and levers, and I had real fun the gravity and physics of how things moved. Part of it dispensed mint Mentos into diet Coke. At the end, it knocked down a hammer onto a tube of tooth-paste, thus squeezing it onto a tooth brush. By the time that happened, I had to brush my teeth and go to bed. Thanks for the idea. It was fun.

Becca, age 10 of Vista, CA wrote:
I used Jenga blocks instead of dominoes. I made a lever using a ruler and jenga blocks. I made different shapes, and it turned out really well! I'm going to try something a little bit more complex next time.

Candy, age 7 of Chicago, IL wrote:
I tried to put ice cream on a cone. wow it was fun and it took a real real long time to get it to work but I ended up getting ice cream.

Madison, age 9 of Alabama wrote:
the hole thing went great it looked so cool when I tried it man I wish you all could of ben there!!!

Kayla, age 13 of Cincinnati, OH wrote:
i did a working thermonter

Desiree, age 11 of Fort Smith, AZ wrote:
Well I tried doing the Rube Goldberg Invention. I aiways invent things and I mean my mom doesn`t even care what I do, but this time she totallt freakedout. I normaly do that kind of stuff in the livingroom but, this time it was even to big a job for my livingroom so I had to do it in my room. It turned out acttualy realy good.

Spencer, age 7 of Tylorsville, UT wrote:
i used a circle shaped board, spoons, 3 1ft. spools & a handle...

Aslan and Izze of Charlotte, NC wrote:
I made an invention that made up a bed when you pull a string. I used string, a pulley and a hook.

Angela, age 14 of Green Bay, WI wrote:
My invention was awesome! I made an invention so that I wouldn't have to get up to get food, I made a really long attached string to my cupboard to get food and bring it back. I love it

Amy, age 10 of Atlanta, GA wrote:
My experiment results were pleasing. I got my water cup to get to me in 17 steps!(Although I could have gotten up from the couch and gotten it!) I got inspired fronm your game so to you, zoom I had my water finnaly get to me by skateboard. Thanks Zoom, and Good luck with your contraption!

Brigitte, age 11 of Victoria, BC wrote:
I wanted to play a prank on my brother so when he opend my door a shoe would fly at his head. but dont worry not to hard. I used a long string a shoe a plce that is hight near a door the door handle and a hoke on the wall. I tied the string to the door nob and then put it throw the hoke. and then the string was attached to the shoe wich was on the hight spot. so when he opend it the shoe went flying! it really worked

Ari, age 8 of Silver Spring, MD wrote:
My idea was to turn on a small reading lamp. My machine worked like this: I rolled a stone down a book and hit the dominos. The last domino hit a bouncy ball that rolled down a cardboard ramp and into the empty domino case. The weight tipped the domino case over, letting the ball out and the ball pressed the switch. I was very pleased to see how it worked.

Mel'Anie, age 10 of Morelan, HI wrote:
I used a srting a domeno and a magnet, when I tried the trick the first time it did not work, the second time I dropped the domeno into the cup the cup fell and I pulled the srtingthe magnet hooked on to the domeno and it blew up hopefully next time I try it will work.

Micka, age 12 of Eastover, SC wrote:
I Loved Doing the Experament I turned off the lights from the coach

Kim, age 15 of St. Louis, MO wrote:
My machine worked very, very well. A pulley (a. k. a. a spool of ribbon on a pencil taped horizontally between two Lincoln Logs) dropped a playing-card box full of pennies on to a lever made of a shoe box lid. The lever lifted up my inclined plane (a book), which caused a tennis ball to roll down and hit a cup of marbles, which fell off a different shoe box and landed on the end of a tube of toothpaste. The force pushed toothpaste out on to a toothbrush. Good luck making yours!

Marisa of Vail, AZ wrote:
It was amazing! I had to get toothpaste onto a toothbrush in more than 6 steps, I got it in 7! I never knew that something could be so amazing!

Trey, age 15 of Virginia Beach, VA wrote:
It was great I made a rube goldberg machine that turns on my tv by a marble hitting the remote control.

Mariah, age 9 of Philadelphia, PA wrote:
Well it was a school project. I had to get a pencil to land in a pencil case 20 ft away! It worked! Iwas so happy!

Emma, age 6 of Brockville, ON wrote:
it worked. the gumball went in the pan.

Ashley, age 7 of Fort Wayne, IN wrote:
it worked out really great you should see it it`s cool you`ll love it i`m sure you would love it

Jesica, age 9 of Trenton, NJ wrote:
it worked. I used a string a domeno a stove and an egg and a plane cup. The first thing I did was pulling the string then the cup fell on the button to turn the stove on then the domeno fell to drop the egg in the pan then the otherstring caught the egg then the other string peeled it. while the stove was heating the string was peeling the egg. it made eggs thats how it works.

Mark, age 9 of Kissimmee, FL wrote:
The cup fell and used1 100 steps to it and it work

Danielle, age 13 of Sharpsburg, GA wrote:
For my invention, I tried to turn on my lights from my bed... it took alot of string!!!

Todd, age 13 of Mockesville, NC wrote:
It worked, 30 mardles fell into A bucket witch pulled A wire that opened a valve in a bucket of water, Witch flows down a pipe witch pours into another bucket, Witch pulls a suction cup arrow back on a bow with a push pin on the back witch pops a water baloon witch colects in a bottle witch on a lever witch closes a pair of sizzors on the arrows wire witch makes the arrow turn on the televesion.

Christian of Ames, IA wrote:
I needed my pet parrot, and a crazy rocket from hobbu lobby. Mom made me do it outside. I made a self- wiping handkercheif. As you raise the spoon of soup, it pulls a string. that jerks the ladle, throwinbg the cracker. the parrot flies aftr the cracker. It's perch tilds, making a marble roll into the bucket. that pulls a stick that pulls a string, which opens the cigar lighter, (please only do under adult supervision) which lights the firework. It shoots up in the air, which pulls a pair of scissors so they cut a string, leting the clock pendulum wich has the napkin on it which wipe your face off.

Garrett, age 12 of Dunmore, PA wrote:
I made toothpaste go on a toothbrush in 3 steps! I made a series of tunnels that a ball went into that led to a chain of dominoes. The dominoes got bigger everytime they knocked on over one. So that led to a hammer that landed on a tube of toothpaste.