Rafflesia International School Puchong organised a Science Video Making Challenge this academic year.

Science week has been an annual event held in the past when physical school is allowed. We used to have science week where students learned how to be creative and present their ideas using posters.

This year we have come up with an idea to hold science week as a virtual event, students get to learn how to use their MacBook to create video clips (meant to be short) to record their finding and research ideas.

All year groups from Year 7-10 race against time to work online in a group of maximum four members to compile their ideas into a video format.

Here are some experiment highlights from Year 7.  Let's have a look at their creativity.


Video 1:  Bouncy Egg

Experimenter:  Lai Jia Qi, Christiano, Joshwin & Gabriel Bong

The Science Behind It:

Why does an egg turn bouncy when put in vinegar?

If you soak an egg in vinegar the eggshell will absorb the acid and break down, or dissolve. The calcium carbonate will become carbon dioxide gas, which will go into the air. What is left is the soft tissue that lined the inside of the eggshell. It will bounce!


Video 2:  Oxidation-Reduction Reactions

Experimenter:  Eason, Tim, Qi Zheng, Teoh & Shafwan

The Science Behind It:

An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.

Redox reactions are common and vital to some of the basic functions of life, including photosynthesis, respiration, combustion, and corrosion or rusting.

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