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  • It's AumSum Time

  • Can you guess the title of my next video?

  • Hurry up.

  • Write your guess in the comments section below.

  • How do snowflakes form?

  • My snowman makes them!!

  • You wish!!

  • A snowflake begins to form when a supercooled water droplet in the sky freezes onto a dust particle.

  • Pollen forming a tiny ice crystal.

  • However, when water freezes, its molecules arrange themselves in a hexagonal pattern.

  • Thus giving the crystal a hexagonal shape.

  • Now, as the ice crystal keeps falling, it comes in contact with more water.

  • As a result, the water starts freezing on the six corners of the ice crystal.

  • Causing branches to grow on the corners and thus, giving us a beautiful snowflake.

  • Also, as the atmospheric conditions are the same on all sides of the snowflake, the branches grow identically.

  • Thus making the snowflake symmetrical.

  • But since every snowflake follows a different path to the ground, it encounters different atmospheric conditions.

  • Hence, it is said that no two snowflakes are the same.

  • They all tend to be unique.

  • Why are bees dying?

  • Maybe because of mosquito nets!!

  • Naahhh!!

  • Honeybees are extremely important for the environment.

  • Besides providing honey, honeybees pollinate crops, giving us 70 to 75% of the fruits, vegetables and nuts that we eat.

  • Dude!!

  • Bees are sooo necessary!!

  • Absolutely!!

  • However, in the last few years, honeybees have started to disappear.

  • Millions of honeybee hives or colonies have died.

  • This condition is known as colony collapse disorder or CCD.

  • According to a prevailing research, a number of reasons are responsible for this disorder.

  • One of them is pesticides like neonicotinoids.

  • They kill crop eating insects and pests.

  • However, neonicotinoids affect honeybee's central nervous system.

  • Hence, it cannot navigate its way to the hive.

  • It gets lost and eventually dies.

  • Along with pesticides, Parasites like Varroa mites.

  • Climate change and habitat loss are some factors that are contributing to the decline of bees.

  • Why vultures don't get food poisoning?

  • Coz they go to regular yoga practice!!

  • Naahhh!!

  • Vultures are generally scavengers.

  • They eat decaying or rotting flesh of dead animals.

  • But any decaying substance has many harmful microbes which if consumed can make an animal.

  • A human sick or even cause food poisoning.

  • However, vultures have a strong acid in their stomachs that protects them from harmful microbes.

  • But, we also have acid in our stomachs, right??

  • Indeed!!

  • But the acid in a vulture's stomach is much stronger than the acid in a human's stomach.

  • It is so strong that the acid can even corrode certain metals.

  • Thus, when a vulture eats decaying or rotting flesh, the strong acid in its stomach destroys.

  • Most of the microbes that can cause food poisoning and other health problems, thus keeping the vulture safe.

  • What is earwax?

  • It is a wax used to make candles!!

  • Ohh gross!!

  • Not at all!!

  • Earwax is used to lubricate and protect our ear canal, middle ear and inner ear.

  • Ohh!!

  • But how does it form??

  • Our ear canal consists of special glands.

  • They produce an oily and waxy substance called cerumen.

  • Cerumen moisturizes our ears.

  • It traps dust and dead skin cells, keeping our ears clean.

  • Besides this, cerumen also has antibacterial properties.

  • When harmful microbes try to enter deeper into our ears, the cerumen traps and kills the microbes.

  • These dead microbes, dust, oil and dead skin cells together form the earwax.

  • Topic: Bad Conductors of Heat

  • Why are two thin blankets warmer than one thick blanket?

  • Coz two chocolates are better than one!!

  • Naahhh!!

  • To understand this, we need to first learn about bad conductors of heat.

  • Bad conductors of heat are the materials which do not allow heat to easily flow through them.

  • Air, wood and glass are some examples of bad conductors of heat.

  • In these examples, is our train conductor included as well?

  • Oh!!

  • Just listen!!

  • A thick blanket allows much of our body heat to escape into the atmosphere.

  • However, when we use two blankets one on top of the other, air gets trapped between them.

  • This air being a bad conductor of heat, does not allow our body heat to easily flow into the atmosphere.

  • Thus keeping us warm.

It's AumSum Time

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