The pufferfishes
The pufferfish
Description :
The Pufferfish team made balloons that inflate on their own!
After programming the Robotic Mouse(!) to show the materials they would need, they carried out the experiment. They put baking soda in one balloon and filled another with vinegar. After placing the balloon with the baking soda inside the balloon with the vinegar, they tied them tightly and marked dots on them. Then they stepped on the balloons with their feet. As the balloon with the baking soda popped, the outer balloon expanded, since the baking soda and vinegar reacted with each other. The dots they had drawn helped make the balloon’s expansion visible.
Well done to the Pufferfish team for your creativity!
The pufferfish
We are a team of enthusiastic children who love learning and playing together. We enjoy discovering new things and doing experiments. Working as a team makes us happy because we help each other and share ideas.
Our school is in Tragaki, on the beautiful island of Zakynthos in Greece. We were very excited about this experiment and we were curious to see what would happen. We decided to participate because we like exploring, asking questions and learning in a fun way.
from Greece, Albania, Russia, Lithuania
teacher:
Melpomeni (Melina) Kefallinou
location: Zakynthos, Greece
Comments
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ΡΑΧΗΛ ΚΑΛΛΙΑΝΙΔΟΥ
on 05/05/2026
So it was great, you did a really good job, it was fun, we loved it, we're thinking of doing it too.
from our Mentor
Anastasia Tezari
on 04/05/2026
Such a fun and colorful way to recreate this experiment! Well done! And of course mistakes are just a part from the learning and experimenting process!
from our Mentor
Dr. Rana Mustafa
on 30/04/2026
This is such a fun and creative experiment. I loved how the Pufferfish team combined robotics, chemistry, and observation in one activity. The use of baking soda and vinegar to inflate the balloon made the chemical reaction visible and exciting for the children. Drawing dots on the balloon was also a clever way to help everyone see the expansion clearly. Well done to the Pufferfish team for making science playful, hands-on, and memorable.
Electrons and Ms. Eleni
on 22/04/2026
Συγχαρητήρια, κάνατε ένα πολύ ωραίο πείραμα για παιδιά της Α' Δημοτικού! Μας άρεσε πολύ το βίντεο και η συνεργασία σας. Ήταν μια καταπληκτική ιδέα και είχε μεγάλο ενδιαφέρον να βλέπουμε πώς φούσκωνε το μπαλόνι!
You did a great job! Your experiment was excellent for first graders. We really enjoyed the video and your teamwork. It was a fantastic idea and so interesting to watch the balloon inflate!