Group 05 HydroBot

Added: 2026-05-31

[00:00:03][music] [music] [music] >> Good morning, distinguished judges and teachers. We are team Aurora from SJKC Chung Hwa. I am Oliver in the class. I am 1 year old. I am Charlotte Koh Kai Yin. We would like to share our mini story on our big problem.

[00:00:42]This is me when I'm trying to help Mom to clear the mess.

[00:00:46]I have tried my best to squeeze it dry.

[00:00:56]This is my sister trying to use the electric mop, but do not know how to use it. [music] This is me. I know exactly which button to turn on, but the battery [music] level is low. It needs to be charged for hours before I can use it. This is me.

[00:01:13]Why are the cables always tangling and causing the mess? I just wanted to help, but Bye.

[00:01:21]Everything in the store is made of big big paper.

[00:01:27]And they have something like easy AND POWERFUL.

[00:01:35]YES, THE FLOWER POT MADE BY CHILDREN FOR CHILDREN.

[00:01:42]HYDRO BOT.

[00:01:44]Our hydro bot has three big parts. The trolley, the wheels help us move the hydro bot around easily. The gear spin big gear, they lock together. When one turns, everything turns. Ta-da!

[00:02:04]Now we need energy to drive the gear, but how? The hydraulic drive. When we pump the pistons, the water goes up and the water up to the water bag.

[00:02:16]Now the potential energy of the water is converted into kinetic energy to spin our gears.

[00:02:21]Let's put it all together.

[00:02:24]Ta-da!

[00:02:25]As we pump the water up to the water bag, we're building up the pressure. We release the water.

[00:02:30]Water energy is turning on potential energy into kinetic energy.

[00:02:35]Look at the gears spin. The kinetic friction is driving the flow.

[00:02:40]No electricity, no battery, just clean science.

[00:02:45]This works so well. In the future, we want to build a mega hydro bot with a much larger water bag.

[00:02:53]A bigger bag means even more energy for even bigger cleaning jobs. YES, YOU are right.

[00:03:00]Bigger shafts connect to the handle.

[00:03:04]It will feel more comfortable to the bigger hand.

[00:03:08]We are already sustainable because we reuse our water.

[00:03:12]Our next upgrade, we will use recycled materials for the frame to make hydro bot even more friendly.

[00:03:19]In conclusion, our hydro bot works like a rabbit hydro bot.

[00:03:25]It is lightweight and easy for us to handle right now. It is safe, no batteries, no carrying cables.

[00:03:34]Importantly, no more electricity in the home. Luckily, we missed the top rule of the challenge.

[00:03:42]A comfortable and clean energy.

[00:03:45]And that we need for our health. Responsible consumption and production to our environment.

[00:03:53]Now children, but we have big ideas.

[00:03:57]More fun, big time. Thank you.