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Science Rocks!

Balloon Boat


your results

Sent in by:
Asha C. of Calgary, AB, Canada

ZOOM, ZOOM, ZOOM! A boat with a balloon!

Materials Needed

  • empty 1/2 gallon milk carton
  • clear tape
  • a straw
  • a balloon
  • string
  • scissors
  • pool of water (You could use your bathtub.)



  1. Construct a balloon boat using a milk carton, tape, a straw, and a balloon.
  2. When you are building your boat, think about what force will push the boat forward, and what will make the boat go faster or slower, straight or crooked.
  3. You could also build a string track for your boat so that it will travel in a straight line.
  4. If you like, get together with a friend and have a race.

How did you build your boat? How did it work when you put it in water? Did it go straight or did it go around in circles? Did you get it to go far? What could you do to improve your design? Share all of your results with other ZOOMers in our special feedback area. We'll publish a whole bunch of them right here every week.

Some of your Results

Cindy, age 8 of Blackfoot, ID wrote:
I put it in the water and it floated in the water and I made a really small one and that one didn't float and I bet the bigger one was heaver than the small one because I put more balloons in the big one than the smaler one so thats why the smaller one didn't float and the big one did.

Casandra of India wrote:
in acsidint I let the air go and it blastid of

Sloane, age 7 of Visala, CA wrote:
Well, it was a boat floating. It was very cool.

Karen, age 11 of Chicago wrote:
when I tryed it my boat weant fastre

Mackeenzie, age 7 of Oshawa, ON wrote:
The paper boat flooted for one minneint then sank because it got to wet

Janina, age 11 of Costa Mesa, CA wrote:
My balloon boat actually worked! I put a paper boat on the bottom of a balloon. I had to actually tie the boat to the balloon. I went outside, and it flew up, up into the air! I don't even know if it popped yet, or if its still flying.

Alphonso, age 8 of Philadelphia, PA wrote:
it start fling everywhere

Kelsey, age 7 of VA wrote:
it foatdid

Gibson, age 6 of Cranbrook, BC wrote:
it was floating in the bathtub

Kate, age 16 of Phoenix, AZ wrote:
it trund out good

Maliyah, age 10 of Mansfield, OH wrote:
I think the ballon is going to be flat when it sit a long time.

Cj, age 6 of Lansford wrote:
I used a poped ballon and a stick and blow it up and thats how I made it

Laquan, age 13 of Chicago, IL wrote:
The boat stayed up and went far

Bailey, age 16 of Grand Rapids, MN wrote:
The balloon poped in the water and the boat sunk because the balloon.

Clarissa, age 10 of Scottsdale, AZ wrote:
It was really awesome and me and my parents enjoyed it.

Alexis, age 7 of Welcome wrote:
I loved the idea that you made the balloon boat! When I did it, it kind of worked but then it tiped over and I had to jump and get it. I hope you make more arts for me to try and more showes for me to watch.

Anna, age 10 of AL wrote:
The ballons kept falling apart even with tape.

Sanya, age 5 of Aurora, IL wrote:
I love balloon boat!

Breeon, age 10 of Las Vage, NV wrote:
When I made the boat it did not go as pain they I wanted to go, but I sell go to do it right the 2nd time!

Tayler, age 9 of Fremont, CA wrote:
It turned into a submean.

Arianna, age 7 of AL wrote:
It didint flot.

Jackie, age 7 of Richmond wrote:
The boat fell down and the ballon popped.

Aaliyah, age 9 of Paterson, NJ wrote:
Well first I made a boat. Then I put tape on the balloon and sticked it on the boat. Then I made some decration to look beautiful. Finally I let it float on the water.

Kara, age 11 of Meally, KY wrote:
I got two ballons and ran a bathtub of water. I blew up the ballons but didn't tie them. I put them into the bath tub and raced them.

Carol, age 13 of Uruguay wrote:
The balloon fly of the boat.

Joel, age 11 of San Diego, CA wrote:
It floted and it poped.

Juliette, age 11 of Niagra Falls, ON wrote:
When I made the balloon boat it just floated in the water and did nothing so I think that I must of did something wrong.

Michandra, age 8 of Baton Rouge, LA wrote:
It floated across the water.

Karen, age 9 of IL wrote:
It sanke on me.

Anthony, age 10 of Montreal, Quebec wrote:
It went to the other side of my pool.

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