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Greenwave Environmental Care Competition

“Discovering the joy of learning through problem solving”

In response to the national call in the fight against Dengue and Zika, we formed a group to embark on the Greenwave Environmental Care Competition. Together, the four of us, Kelly Ng, Ryan Chua, Thavisay Lily and Meijo Fu, launched our school campaign on “Together we can help to defeat dengue” in January 2016.

Our team conducted a pilot study with a class of 38 Sec 2 students to assist in the planning of student-initiated programmes that will promote the awareness of our peers on the dengue situation. We aim to inspire action to prevent dengue and encourage advocacy through social media and word of mouth.

To inspire action to prevent dengue, a Design Thinking Workshop was conducted in April 2016 to infuse Design Thinking process in our action plan. Meet our inspired persona – “Troubled Tessa”. Our character has just recovered from Dengue and recounts her experience with us. She knows the importance of using protection to prevent mosquito bites. However, “Troubled Tessa” hates the smell of mosquito repellent due to its “medicated oil” smell.  This encourages our natural curiosity and decided to come out with our prototype – a cheap, accessible and effective natural mosquito repellent which has the fragrance that our persona prefers. 

Right from the start, we took incremental steps to understand our problem and faced multiple challenges as we realised our limited knowledge on the making of a natural mosquito repellent. After extensive research and repeated experiments, we manage to learn scientific concepts beyond the textbooks and invented our own natural mosquito repellent using common household food waste such as orange peel, coffee ground and eggshell.


A detailed report together with our AHS KRLM1 mosquito repellent prototype was submitted for the first round of judging at the end of July. To our joy, our team was informed that we had made it to round 2 whereby there will be a presentation and Q&A session which enable the judges to better understand our project.

On the judging day itself, we gave a 10mins presentation in front of a panel of 8 experienced judges including professors from NUS and representatives from Ministry of Education, National Environment Agency, PUB, Singapore Science Centre and Khoo Teck Puat Hospital. We were very nervous but thankfully, we managed to articulate our ideas confidently.

We are very proud of ourselves for coming up against strong competitions from other schools and competing against senior students from Upper Secondary. It was also the first time we participated in a national competition together as a team. On 27 November 2016, we finally received the long awaited results.  We are pleased to announce that we clinched the 2nd prize and the Team Collaboration Award! 

On 23rd February 2017, we attended the Award Ceremony held at Marina Mandarin Hotel. It was an exciting and new experience for all of us. We were told that the press would be there and we enjoyed the experience talking to reporters and having our pictures taken. We are also given an opportunity to present our project to Mr Ng Chee Meng, Minister for Education (Schools).

In all, it was an enriching and fun-filled experience. We did experience some setbacks along the way but we have learnt to overcome difficulties with the support from the school and our friends. We have benefited from working with one another and we are grateful for the guidance and support of our teachers and the school.