If science is one of the flames of knowledge, then STEM Day 2025 is the fuel that ignites that flame, making it burn brighter than ever.

Under the theme "Happy Science - Happy Life," STEM Day 2025 at Olympia Primary, Middle, and High School offered students and parents exciting scientific discoveries. It showed that science is not confined to sophisticated laboratories with rare and complex materials but is present in our everyday lives, using familiar ingredients from daily routines. Moreover, the event provided students with the chance to explore advanced technology such as VR glasses, robots, and 3D printers, helping them understand how innovation is shaping our lives and future.

STEM Day 2024-2025 at Sakura - Olympia

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An explosion of joy through exciting experiments and interactive stations

Right from the very first moment, the spectacular science performances set the stage for an electrifying STEM Day 2025. The magical "fire hand" experiment drew the audience into the world of propane and butane gas reactions, where flames danced in the palm without burning the hand — all thanks to the protective layer of water. This stunning display left children eager to try it themselves. Next came the "elephant toothpaste" experiment, where a massive, colorful foam eruption vividly illustrated the decomposition of hydrogen peroxide with a catalyst. The excitement continued with floating balloons, unraveling the mystery of helium gas and air pressure, sparking curiosity in every young scientist present.

The floating balloon experiment captivated the hearts of many young participants. 

The mesmerizing "Fire Hands" performance ignited the atmosphere of STEM Day. 

The thrilling Elephant Toothpaste experiment recreated a spectacular natural phenomenon right on the STEM Day stage. 

Each performance not only fueled scientific curiosity but also ignited a passion for exploration within every child’s heart. As a result, the atmosphere at the interactive stations grew even more vibrant, with groups of students lining up enthusiastically to experience fascinating scientific phenomena firsthand.

At the invisible ink station, children delighted in creating “invisible” artworks using a baking soda mixture, only to be amazed as their drawings magically appeared under a dusting of turmeric powder — a fun way to learn about acid-base reactions and natural color indicators.

The hidden ink artworks by SOers showcased creativity and scientific curiosity. 

Meanwhile, the red cabbage pH indicator station captivated everyone’s attention. The purple cabbage juice transformed into shades of pink, green, and blue depending on the pH levels of various solutions, revealing how an ordinary kitchen ingredient can become a powerful scientific tool.

Who would have thought that a familiar kitchen ingredient could have such fascinating applications? 

Creativity continued to flourish at the lava lamp station, where students combined oil, water, and baking soda to produce glowing, bubbling “lava.” This experiment beautifully illustrated the concept of liquid density and the carbon dioxide gas reaction.

Students create lighting system for lava lamps

The woodworking lab offered a hands-on STEM experience, guiding both students and parents in building fascinating models such as hydraulic excavators, wooden fans, bubble machines, balancing eagles, jet planes, and battery-powered cars. Each model provided insights into hydraulic systems, air pressure, surface tension, aerodynamics, and basic electrical circuits.

Parents enthusiastically joined their children in assembling intricate wooden models.

The reading and relaxation corner took young explorers on a virtual journey through the universe using VR technology. Students traveled across the solar system and stepped into the age of dinosaurs, creating models of planets, rockets, and star systems — fueling their imagination and passion for building and design.

An exciting journey through the universe unfolded with virtual reality (VR) glasses.

A major highlight of the event was the Robotics Competition and Robot Assembly & Programming Station. Here, students eagerly assembled robot models and programmed them to move and overcome obstacles, honing their logical thinking and tech skills.

The Robotic Competition brought fierce yet fun-filled challenges for all participants

Shining bright with impressive achievements

STEM Day 2025 concluded by honoring the most outstanding "young scientists." The Robotics teams wowed everyone with their programming and technical talents, taking home well-deserved awards. Additionally, students who successfully tackled challenging scientific questions in the Quizizz challenge were also celebrated, showcasing their passion and solid knowledge.

Sakura - Olympia proudly congratulates the following students:

ROBOTICS COMPETITION

Grade 3 bracket:

• Champion: Ngo Quang Huy Hoang
• First Prize: Daniel Viet Anh Ryan, Nguyen Tri Dung Kaiden
• Second Prize: Tran Phuc Khanh, Mai Dao Uyen Nhi, Nguyen Thien An
• Third Prize: Nguyen Vu Truong Giang
• Consolation Prize: Tran Thuc Quyen

Grade 4 bracket:

• Champion: Le Bao Anh
• First Prize: Nguyen Duy Andrew
• Second Prize: Tran Quang Minh, Junya Samuel Ngo Komuro, Do Tran Anh Khoa

Grade 5 bracket:

• Champion: Le Ngoc Khanh Quynh
• First Prize: Hoang Thanh Uyen
• Second Prize: Dao Nguyen Tu Anh, Vu Nguyen Bao Anh

QUIZIZZ CHALLENGE

Vu Nguyen Bao Anh - Mars Class

Happy Science - Happy Life

The STEM Day 2025 science adventure has come to an end, but the flame of scientific passion continues to burn brightly. Each child had the chance to experience science in a fun, accessible way — proving that science isn’t dry or difficult, but an endless source of inspiration that sparks dreams and creativity.

Thank you to all the students, parents, and teachers for coming together to create an energetic and emotional science festival. See you again on our next exploration journey.