nse-0290 - 900px ss        cedar2 - 900px
Students from Tanjong Katong Girls’ School viewing the NSE website to learn more about the NSE (Photo: Tanjong Katong Girls’ School) Cedar Primary School students showing their delight at  taking part in the NSE (Photo: Cedar Primary School)


In the National Science Experiment’s (NSE) pilot phase, more than 300 students carried the SENSg device and captured over 1 million unique data points. On average, the students from CHIJ St Nicholas’ Girls School, Tanjong Katong Girls’ School and Cedar Primary School carried the SENSg device for two to three days each.

Results from the nine days of pilot phase are shown below.

Daily step count


This graph shows the number of daily steps taken by secondary school students (blue bars) and primary school students (red bars). On average, secondary school students walked 7,275 steps a day while primary school students walked 5, 324 steps. However, the manner in which the device is worn the way the student walks has an impact on step accuracy. (Click here to see the proper way to wear SENSg.)

These results show that secondary school students could be more active, for example they visited more places or walked longer distances, while primary school students had a more organised routine.

After the completion of the full-phase experiment in November, results on a national scale could provide better insights into how active our students are.

Travel distance

Distance travelled - Tanjong Katong Girls' School Distance travelled - CHIJ St Nicholas Girls' School Distance travelled - Tanjong Katong Girls' School

These maps show the distances that students travel to get from home to school.


On average, most daily trips taken by Cedar Primary School students are within 3km from their school. Daily trips taken by Tanjong Katong Girls’ School students are farther, at an average distance of 5.6km, while daily trips taken by CHIJ St Nicholas Girls’ School students are the farthest, at an average of 7.7km.

These pilot results demonstrate that primary school students typically live nearer to their schools than secondary school students. With further analysis, such results can be used by transport planners and schools to plan more efficient travel routes for school buses.

Average travel time


These two graphs show the time needed for students to travel from home to school, and from school to home. On average, trips taken from home to school are marginally faster than trips from school to home. Primary school students also generally make shorter trips, possibly due to the short travel distance.



This map shows the temperature recorded during the pilot phase, where the darker points indicate a higher temperature. Over the nine days of the pilot phase, temperatures were recorded between 21°C (indoors) to 33°C throughout the day. Peaks in temperature were recorded when the SENSg devices were left in the sun.

This map also shows data from Republic Polytechnic in Woodlands and the Singapore University of Technology and Design in Changi.



This map shows the relative humidity data recorded during the pilot phase, where the blue points indicate higher relative humidity. The SENSg devices recorded humidity levels between 25% (indoors) to 100% over the nine days.

This map also shows data from Republic Polytechnic in Woodlands and the Singapore University of Technology and Design in Changi.

Wi-Fi coverage


As the SENSg device uses Wi-Fi access points to pinpoint its location, the density of of the points could indicate Wi-Fi coverage. In this map, the darker points dots show that more Wi-Fi access points were picked up.

Locations without any points do not mean there is no Wi-Fi connectivity. It could just mean that students did not travel to these locations during the pilot phase.

Researchers hope to obtain a fuller picture of Singapore’s Wi-Fi coverage and Internet connectivity with a larger pool of data, after the full-scale experiment is completed at the end of 2015.

Students say…

This experiment carried out was mind-boggling. When we first heard about it, we jumped at the opportunity, curious to know what this data logger around our neck would be collecting over the span of 2 days.

A presentation (on the data collected) gave us the reason and the purpose of why we are learning certain subjects in school such as Biology, Physics and Geography. This definitely changed our perspectives of jobs involving Science and Mathematics and we feel that women should be involved in more of these jobs.

Gheslynn Gerard and Noorul Azlina , Tanjong Katong Girls’ School


The experiment was a fun experience. I never imagined that I would get the opportunity to be part of such a prestigious national experiment. The 3 days that we had to play around with the data logger were very interesting. The part that I liked the most was checking our own data at the end of the 3 days. I never knew something so small could actually collect various data.
Shah Aashushi, Tanjong Katong Girls’ School

Click here to view photos and videos of the pilot phase