| Award | School Name | Student Name | Video description | |
|---|---|---|---|---|
| Gold | Chan Sui Ki (La Salle) College | Leung
Tsun Yim Zachary Li Ho Joshua Liu Wing Him William |
Our world is painted with an
ample amount of peculiar colours, in which the same
thing could be said with the world of Chemistry. A
chemical gets its color by electrons of atoms
absorbing energy and obtaining a higher energy
level. The electrons then could absorb light; the
colours we see is part of the light that is not
absorbed. We've performed 4 experiments in order to show how colourful chemical reactions can be. 1.Chemical Chameleon reaction 2.Golden rain reaction 3.Dancing greenish blue flame reaction 4.Glowing luminol reaction |
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| Silver | Sha Tin Methodist College | Chan
Cheuk Yi Chan Yuen Wing Kwok Sam Yin Lau Elim Tang Viola Wong Cheuk Yan |
What components can be found in different types of lipsticks, and the principles about some special lipsticks were introduced. | Watch |
| Silver | St. Paul's Convent School | Crispina
Chan Isabel Chan Katie Chow Danielle Vaness Hau Karis Lai Iyana Lau Nicole Ng Jamie Wong |
This video explains some of the chemistry concepts in bread-making. | Watch |
| Bronze | Heep Yunn School | Mak Wing
Yi Leung Lok Hin Wan Hiu Ching Lee Sung Yat Tang Pui Fan Yue Leong Ying |
Graphite, which is made up of carbon atoms, has a giant covalent structure. Layers of hexagonal carbon atoms are held by weak van der Waals’ forces. Pencil lead is made by mixing graphite and clay. When we are writing, forces are applied to the pencil lead. The weak van der Waals’ forces between the layers of graphite are broken and some layers are detached from the pencil lead, forming marks on the paper. Particles in clay are held by electrostatic attractions. By mixing clay with graphite in different proportions, pencil leads with different hardnesses can be made. The higher the proportion of clay added, the harder the pencil lead will be. With a harder pencil lead, a lighter pencil mark will be produced when we are writing with the same force. | Watch |
| Bronze | Shatin Tsung Tsin Secondary School | Wong
Chong Wo Shum Kwong Sing Pang Ka Him Leung Seng Chun Clayton Tang Ching Hei Justin Chan Kin Cheuk Ho Hop Yat Tong Sam |
Our team is demonstrating
the conditions of effective collision with one of
the favourite celebration move from Stephen Curry. Besides, we also use experiment to find out the effect of surface area on rate of reaction, and how it could be used in antacid for alleviating stomachache. |
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| Most-Liked Video |
Daughters of Mary Help of Christians Siu Ming Catholic Secondary School |
Hwang
Ching Yee Jenny Iris Wu Armenia Tam Tracy Yung Diasy Har |
In Ancient China, people used metals to make pills to achieve immortality. The process is called "Alchemy". The Ancients believed pills made of mercury is the most effective because they observed the color changing properties of mercury under heating. Actually, they were performing redox reactions. In this video, we are explaining this concept. | Watch |