How to make rubber band powered boat (working model) DIY at home easily


In this topic, we are going to show you how to make a boat with a rubber band powered model at home for your science project or exhibitions.

This homemade boat science experiment is done using materials like plastic water bottle, plastic spoons, rubber bands and water which is easily available at home at low cost.

Rubber Band Boat – How it works

When we wind multiple times the rubber band our muscular energy transforms into potential energy in a rubber band.

rubber band powered boat - diy

When we leave rubber band then its potential energy transforms into mechanical energy in a rubber band, resulting to act like a propeller which gives it motion.

When the propeller moves it provides a force on the water in backward direction then water also gives equal force to the boat by which it moves in front.

How to make a rubber band boat that floats and moves for a school project at home step by step video?

In this video, we will show steps by step video instructions on how to build a rubber band powered boat model at home easy way.

First, take an empty plastic water bottle and attach two ice cream sticks on the opposite sides at the bottom portion of the bottle with the help of a big rubber band and thread.

Take both plastic spoons and break the back portion of the same. Next, attach back portion of both the spoons with the help of thread as shown in the video.

Use a small rubber band and tag another end of the ice cream sticks attached to the plastic bottle.

Next, place the attached plastic spoons in the middle of it and wind multiple times so that it can work like a propeller fan.

Now continue to wind it and stop when it’s very difficult to wind it any further because if you will try to wind it more than the frame of our boat or rubber band can break.

Now we had done with winding rubber band so let the boat sale. Place the boat in the tub containing water to its brim.

Observe that the fan rotates which acts as a propeller and boat will move around in the tub.

Now let the boat sale and once its winding finishes again turn the propeller in the same way you did earlier and put it back in the water.

Materials Used

Materials used in this video are shown below to build a rubber band powered boat model at home by taking the help of your parents.

  • Big
    rubber band
  • Small
    rubber band
  • Two
    plastic spoons
  • Two
    ice cream sticks
  • Empty
    plastic water bottle
  • Thread

Questions & Answers

1. What does a rubber band symbolize?

Something that holds two things together is called rubber band, allowing them to move apart but always pulling them back together, gently or forcefully depending on how far it was stretched, to begin with.

2. Why do rubber bands break?

The rubber band is a polymer. Ultraviolet light affects chains and breaks them down which causes the rubber to crack, dry and crumble.


Rubber band boat model helps students to learn the working of the boat and as well as how to make it with easily available materials at home.

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