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Understand the structure of water
The water molecule consists of an oxygen atom (red) bonded to two hydrogen atoms (white) in a slightly bent shape with a bond angle of about 104.5°. The high electronegativity of oxygen makes it negative and hydrogen positive; touch the WaterPuzzle and you will feel the force of attraction between the donor (hydrogen) and acceptor (lone pair on oxygen) of the hydrogen bond. You will notice that the water molecules form a hydrogen bonding network shaped like a tetrapod.
*The tetrapod-like shape, also known as the tetrahedral structure, is a structure taken by molecules composed of only single bonds.
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Try throwing "water" into "water"
Try throwing a WaterPuzzle into a bucket of water. You can observe how the molecular models floating in the water slowly come together through hydrogen bonding. You may make interesting discoveries by investigating the shapes of the water molecules as they come together.
How many kinds of ice can you make?
Try assembling the WaterPuzzle in three dimensions, and you will have ice! By the way, do you think that ice crystals are only made of water gathered in hexagons? In fact, as many as 20 types of ice crystals have been found so far, and some of them are assembled in pentagons. In addition, water can gather in clusters, which are different from ice. In other words, what you have assembled with WaterPuzzle must exist somewhere in the world.
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