Fizz-tory lesson

Picture the crack of a chip, the pop of popcorn, the psssht of soda...sounds that make snacking irresistible. Do you ever wonder how science turns simple ingredients into sensory explosions? Aadhya Praval, AIS Gwalior, VIII C, brings to you part II of GT’s Science Behind Snacks series, where every snack shall have its moment. Without further ado, let’s dig in!

Power type
The main character trait of a soda is not its sweet flavour but its bubbles. The tiny bursts of carbon dioxide turn a plain sip into a fizzy thrill that makes everyone go, “Aahh!” The fizz tickles on the tongue as the CO₂ particles activate its nerve cells. Even your nose and ears feel the tingle. From ginger ale to coca cola, it is the fizzy soda which gives them life.

Snack-ology
Soda isn’t just a beverage; it is liquid science! It’s mindfully crafted to hit all your senses at once like an orchestra of sound, chills, and fizz. Did you know that diet soda has more fizz than a regular one? It’s because the sugar content in them makes them thicker, reducing the formulation of bubbles. What a fizz-kill right?

Lab behind the sip
Believe it or not, every bottle of soda is science that you can drink. During manufacturing CO₂ is forced into the drink under immense pressure. The liquid and the CO₂ get mixed until it’s time to open the bottle. With a twist of the cap, the pressure is released, giving way for CO₂ to escape and bubbles to appear. But notice that soda gets fizzier when poured into a glass, creating extra bubbles when the ice cubes slide in. This is the magic of nucleation, where tiny surface imperfections trigger bubble growth. Once it hits your mouth, an enzyme on your tongue, called carbonic anhydrase, converts that CO₂ into carbonic acid, triggering your nerve receptors to create that signature, refreshing fizzy sensation.

Well, why can’t you
stop sipping?
The temptation of soda’s sensory overload is difficult to combat. The cool temperature refreshes you, the sweetness activates the pleasure signals in your brain, and the fizz bounces on your tongue’s nerve endings like a grasshopper in a disco. During the sweltering summer, almost everyone falls prey to this irresistible, instant dopamine rush. One cool sip will turn into an empty bottle even before you get the opportunity to even blink thrice.

Rating: 4/5

Cosmic DNA

An Astrobiological Tour Of The Periodic Table Of Elements

Eeshvi Sharma, AIS Vasundhara 6, VIII C

What if I told you that we are made from stars? Our cosmic DNA hints that the fundamental building blocks of every creature - CHNOPS - originate from the cosmos. Wait not, sail into the unknown!

C for carbon 
Forged within the core of red  stars, carbon constitutes 18% of the human body. It contributes to DNA formation, proteins, and cells, weaving the soul of our essence. Due to its ability to form stable bonds, it  binds our molecular structure together in an organic web.

H for hydrogen
The oldest ingredient in the human recipe is hydrogen,  making up about 10% of your body mass (though it accounts for over 60% of your actual atoms). Created 13.8 billion years ago during Big Bang Nucleosynthesis, it remains the most abundant element in the universe (about 74% of all baryonic matter). It is a key component of water and the ‘proton gradient’ that powers your mitochondria.

N for nitrogen
Roughly 3% of our body is nitrogen, an element produced during the CNO (carbon-nitrogen-oxygen) cycle in the hearts of stars. Not just the most abundant gas in our atmosphere, it’s also a vital component of amino acids and the nitrogenous bases in DNA.

O for oxygen
This heavy lifter, makes up about 65% of our body. It is formed in the nucleus of stars and spreads across the cosmos during supernovae. In your body, oxygen acts as the final electron acceptor in cells, generating energy.
 
P for phosphorus
Phosphorus forms molecular grids, making up roughly 1% of the body. Born through stars during supernova explosions, it forms the structural phosphate of genetic code and is the central component of ATP (Adenosine Triphosphate), like a battery cell.

S for sulphur
Elusive in interstellar gas clouds, this element is vital for forming amino acids, proteins, and enzymes. When a star, in its final stage, goes through nuclear fusion, sulphur forms by fusing helium and oxygen.

And that sums up the cosmic concoction of our bodies. It is a reminder that we already carry the universe within us.