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August 22, 2023

When we burn coal or wood in a burner or a stove, we see that the coal becomes extreme heat (burning lava) while burning. After some time we see that when the burner cools down, the coal finishes and the ash remains.

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August 20, 2023

We use wood, cow dung cakes, kerosene (kerosene), bio gas or (LPG) gas in the stove for cooking. Scooters and buses run on diesel, petrol and (CNG) roads. In the fields, the tractor also runs on diesel.

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August 18, 2023

Hydrocarbons are compounds of hydrogen and carbon. They are found in petroleum and natural gases. Methane (CH4), Ethane (C2H6), propane (C3H8) and butane (C4H10) are some examples of hydrocarbons.

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Carbon monoxide
August 17, 2023

We often read the news in the newspapers that on seeing it in the morning it was found that some people were found dead in a closed room, who were sleeping by burning coal in the fireplace.

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Carbon dioxide
August 16, 2023

Carbon dioxide is 0.03 percent of the total volume of air. This gas is produced by burning of fuel, by respiration and by rotting of animals and plants (vegetables) and is added to the atmosphere.

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Types of Carbon
August 15, 2023

Carbon is found in two forms - (1) crystalline (crystal-forming) and (2) amorphous (shapeless). Crystalline atoms are arranged in an order. Diamond and graphite are two forms of carbon.

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August 13, 2023

Carbon is the 12th element found in abundant quantities in the Earth's upper layer (surface). In nature it is found in both independent and combined states.

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August 11, 2023

Common salt is one of the common salts that is used mainly in our daily life. The chemical name of common salt is sodium chloride (NaCl). Another such salt is Soda, which is chemically named sodium bicarbonate (NaHCO3).

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August 09, 2023

In your daily life, you use different types of soaps and detergents. Washing and cleaning clothes are done with their help. These substances contain alkalis, which are chemically hydroxides or oxides of metals and react with water to form hydroxides.

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August 07, 2023

You must have seen and eaten many such substances in your life, which have a sour taste. Some examples of these substances are lemon, tamarind, vinegar, orange and yogurt.

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Separating Components of Mixture
August 05, 2023

If some substances are mixed by mistake, then they need to be separated from each other, but sometimes it is very difficult to separate them. In such situations we use a variety of special methods, such as filtering, gleaning, sublimation, evaporation, precipitation to easily separate substances.

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August 03, 2023

If you add some sugar or salt to the water, we see that in a short time they dissolve in the water and then do not appear in the water.

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Elements and Compounds
August 01, 2023

There are many substances that consist of the same type of atoms, such as oxygen, hydrogen, gold, copper, silver, iron, nitrogen, chlorine, sulfur, magnesium, aluminum. Such substances which consist of the same type of atoms are called elements.

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States of Matter
July 30, 2023

Matter can be divided into three groups - solids, liquids and gases, depending on their states.

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Matter - Atoms and Molecules
July 28, 2023

We see many things around us such as a table, chair, book, glass, hills, mountains, river, birds, animals, sun, moon and stars. All the objects seen around us are either born naturally or made by humans.

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Food and Nutrients
July 26, 2023

Whenever we feel hungry, we eat food. Food not only ends our hunger but also gives us energy. Food gives energy to do some essential elements required for the important works of the body.

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Sensory Organs
July 24, 2023

Organs which tell us about the presence, element or taste of any objects are called sensory organs. We can see, listen or feel by these organs. We have five sensory organs - eyes, ears, nose, tongue and skin.

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Nervous System
July 22, 2023

All the coordinating activities are done by our brain and nerves which is called nervous system.

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Excretion System
July 18, 2023

Every cell of our body keeps on doing something or the other. Therefore, some garbage is always found there. These elements are harmful and should not be collected in body. It should be thrown out of the human body.

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Circulatory System
July 16, 2023

How digested food from food pipe and absorbed food from body reaches every cell? Carbon dioxide from all body parts and other waste elements related to waste materials (kidney, lungs)? All there works are done by a pump (heart) and artery coming out and reaching there.

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Respiratory System
July 14, 2023

All living organisms including humans breathe. Our body needs energy for many activities 24 hours a day. This energy is used inside the cells during breathing. It uses oxygen to disintegrate glucose from food.

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Digestion System
July 12, 2023

 Every organism needs food to live. There are five steps of nutrition or food intake to its usage.

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Skeleton and Muscle System
July 10, 2023

We are movable. We are not static at one place. We move from one place to another. We can also move our hands, legs, head and so on. All these movements are possible by the mixture of two systems in human body - bones and muscles. All bones together make skeleton system and all muscles together make muscle system.

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How New Plants are Formed?
June 17, 2023

Every organism whether plant or organisms reproduces his species and gives birth to new ones. Giving birth to a child of its own type is called reproduction. Plants reproduce in two ways - through seeds or by stem or leaves.

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