How do you think that the food cultivated by farmers reach our homes? Any guesses? Agriculture is intertwined with many other processes such as – cultivation, preparation of soil, sowing, irrigation, and so on. A farmer is involved in all these processes. He prepares the soil, sows the seeds, adds manure, irrigates, and harvests. As …
Gazing the sky at night time feels so relaxing. The shining stars that reflect light. The moon that sometimes smiles, or hides. The twinkling meteoroids. All these create a perfect night scenery. But sometimes things aren’t the same as we see them. In this lesson, we will take a closer look at all these celestial …
We often hear our loved ones asking us to wash our hands thoroughly, definitely before having any meal, or when we come home from outside. But why is that so? Well, the aim is to wash off Microorganisms also known as Microbes. What are Microorganisms by the way? They are tiny organisms that cannot be …
Do you know that plastic has now reached in the deepest part of the oceans? Yes! That is true. There is plastic found in the Mariana trench which is the deepest point in the Ocean. Humans polluting water has gone beyond the limit. It is high time that we start thinking about our planet. Since …
We have already learnt about natural fibres in our previous classes. In this chapter, we take a detailed look on synthetic fibres i.e man-made fibre cloth. Synthetic fibres are created by chemically processing natural fibre. Some of the examples of synthetic fibres are rayon, nylon, polyester, and acrylic. Also, we will learn some important factors …
What if we tell you Mercury is a metal? Baffled? Don’t be. In this chapter, we take you through the amazing facts about metals and non-metals. We will learn about their properties, know if they are good conductors of heat and electricity, and learn about their uses. Also, we will put up some interesting facts …
Will a car or bike start without having petrol in it? It is impossible. Petrol is one of the precious resources that we need. Most vehicles in the present times run on this fuel. Petrol is obtained from petroleum, which is extracted from deep insides of the Earth. Another important resource that we find in …
One of the best ways to light a fire is by using a matchstick. What would happen if you keep a matchstick in the open air? Will it start to burn all by itself? No right! But why is this so? Well, all flammable substances have specific ignition temperature. After reaching that point, a substance …
Due to the increasing amount of carbon dioxide emissions and deforestations, Global warming has today become a reality for all of us. Increasing population demands large spaces. For this reason, forests have been changed to concrete jungles. The ascending number of vehicles releasing hazardous gases has polluted the atmosphere. But all of these can be …
Alike small bricks, when stacked together, make a building, a very special unit known as cell forms the entire human body. These cells are also known as the “building blocks of the body”. These small units are enclosed in a membrane and perform various functions of a human body. Amazing right? Want to learn more …
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