What if we tell you that black coal and a shiny diamond has a fundamental similarity? Yes, you heard us right. Both black coal and the diamond are made up of carbon. The diamond and coal appear different because of the chemical bonding between their carbon atoms. Carbon can form a special kind of bond …
Suppose there is a mix of some tomatoes, potatoes, onions, apples, mangos, bananas, and some lemons in a basket. Now your job is to count all the vegetables. While you may want to count the vegetables one by one, but there is a simple way. Classification. What if we classify the vegetables differently? Tomatoes, potatoes, …
Have you ever wondered from where do we get the energy to perform our daily activities? It comes from the food that we consume. We know our body is made up of cells and they are the functional unit as well. So does that mean food that we consume and the food required by the …
Why do we immediately pull our hand away when touched a hot object? Because of a reflex action. You will be amazed to know that the brain is not at all involved in this process. The signal goes to the spinal cord and comes back from there signalling muscles to move away quickly before we …
Genes are the basic fundamental units of life. They are transferred from the parents to offsprings by a complex process. Ever wondered why we don’t look exactly like our parents? Or why we don’t look identical to our siblings? Also, we humans look way too different from our ancestors. Humans evolved from their ancestors through …
Whenever you stand in front of a mirror, you see an image of yourself in it. Ever wondered how is it possible? Or how are we able to perceive objects with our eyes? All these things are possible because of “Light” and the magical phenomena of “Reflection” and “Refraction”. Does that mean the light makes …
Vision is the dominant sense for us. We perceive almost 80% of all impressions using our sight. Ever wondered what would you be without those spherical pair of eyes? Difficult to imagine, right! Indeed, our eyes are the windows to the wonders of the world. Sight is the precious gift we can’t take for granted. …
On a hot sunny day, you return home covered in sweat only to see that there is no electricity and hence no Air Conditioner. What would it feel like? Electricity has become a modern necessity for humans because it is a controllable and convenient form of energy. Ever wondered how does electricity flow in an …
Electricity is a boon to mankind! We have studied the conduction of electricity in the previous chapter. The electric current-carrying wires behave like a magnet. There is a close connection between electricity and magnetism. This connection between electricity and magnetism is called the “Electromagnetism”. Several appliances work on this incredible phenomenon. Curious enough to learn …
The world population is increasing day-by-day. This means, the demands for the usage of various resources also increasing. It should be noted that the energy resources we use, are limited and may go extinct if we continue to use them without thinking of tomorrow. Hence, to limit the use of these energy resources, we must …
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