Bismillah
Zumro and Zahra!! Alhamdulillah.. Kenangan 2009 bersama Cikgu Isa dan Cikgu Sufi.. The article below published in The Straits Times Newspaper yo! Subhanallah..Eventhough we didnt win any prizes,syukr lillah that we are among the chosen one to be featured in the newspaper article! Alhamdulillah :D
| The X Factor, The Straits Times, Saturday, 19 September 2009, Page D10 |
| Date of Release : 19 Sep 2009 |
Students competed to create the best science projects at the Amazing Science-X Challenge (ASXC). The competition kicked off earlier this week, with 71 teams from 24 schools - primary to tertiary level - taking part. Cash prizes of up to $2,000 will be awarded to the best projects today. The 12 best exhibits will be on display at the Science Centre Singapore until Oct 3. Amresh Gunasingham looks at some of the highlights.
Predicting weather with liquid
Storm Glass
Who: Secondary 3 students Ang Pei Xuan, Grace Tan and Grace Fong, Raffles Girls' Secondary School
The project: The students recreated a storm glass - a primitive weather prediction device used about 300 years ago to predict weather based on the appearance of the liquid inside a container.
A cocktail of water, ethanol and camphor is placed in an enclosed beaker. A heater is used to vary the temperature of the solution, which in turn affects the solubility of the three ingredients.
The appearance of the liquid in the storm glass shows the simulated weather conditions. For example, a cloudy appearance signifies an approaching thunderstorm.
The higher the temperature, the more soluble the liquid. Hence warmer, sunnier weather is reflected by a clearer solution.
Smart way to play with viscosity
Mad Mud
Who: Secondary 4 students Manfred Ng, Alvin Lum and Dedrick Tan, Raffles Institution
The project: The container is filled with a 'smart' fluid - a mixture of grease, oil and iron particles, with a pump to ensure the constant movement of the liquid.
Pressing a button activates an electromagnetic field that results in a thickening of the fluid, or an increase in its viscosity.
A pivot placed on the container moves a brush inside it. This creates lines - formed in a pattern - as the magnetic field interacts with the fluid.
A firestorm in the making
Spiralling Fire
Who: Secondary 3 students Zahratur Rafiqab Md Sandisi, Zumro La Mogamadia and Nur Afiqah Osman, Madrasah Wak Tanjong Al-Islamiah
The project: Under certain conditions, firestorms can create fast-moving vortices of fire, which spread rapidly. The winds in some of these fire vortices can reach tornadic strengths, effectively creating a fire tornado.
A piece of sponge doused in flammable liquid is placed at the centre of a metal cylinder and lit. The direction from which the air feeds into the flame determines its whirl effect or tornado shape. Strong currents cause the air molecules to spin. The rotating air molecules collide with the hot air rising and the flame twists into a tornado shape. This creates a self-sustaining firestorm fed by the influx of oxygen.
Photo Caption: (From left) Grace Fong, Grace Tan and Ang Pei Xuan recreated a 300-year-old weather prediction device. -- ST PHOTOS: DESMOND LIM
Photo Caption: (From left) Alvin Lum, Manfred Ng and Dedrick Tan with their project where an electromagentic field can be activated, causing a thicker fluid.
Photo Caption: (From left) Zumro La Mogamadia, Zahratur Rafiqab Md Sandisi and Nur Afiqah Osman with their project, which creates a self-sustaining firestorm.
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