What is one of the most astounding things that you have ever heard? Is it about some structure? Is it about the galaxy? Or something more? Whatever that you have heard of, has one thing in common and that is the – Matter. What is the matter? The matter is anything that occupies space and …
If you want to buy gold, what would be the first thing you ask the goldsmith? Won’t it be about the purity of the gold? But how would you know if a substance is pure or not? Scientifically, pure substances are the ones which thoroughly are made up of a single element. The mixture, on …
Try this. Take a part of a brick and hammer it continuously, until all that is left is a red powder-like substance. The powder-like substance still has minute particles in it. These particles are called ‘Atoms’. Every substance is made up of Atoms. Along with the Atoms, substances are composed of smaller units called ‘Molecules’. …
Every part of a human body is made up of minute particles called “Cells”. These are the cells that make up the bodies of huge organisms like the elephants as well as Humans! Not only do they make their bodies, but are also alive. Yes, you heard it right, cells are living organisms. Each cell …
Human body is extremely fascinating. It is huge and complex. Can you tell which is the basic functional unit of our body? It is the cell. The cells show some magical properties and abilities. Cells with similar functions have the power to combine and form a bigger structure called the “Tissues”. This means – cells …
There are as many as 8.2 million species that live on earth. This only contributes to 15% of the known species. We are yet to classify and discover the remaining 85% of the species population. In such a vast world, it is practically impossible to make a count of every living creature that is a …
All living beings can’t stay in one place for hours long. Even the laziest person will show slight changes in their position. This change of position indicates that we move from one place to another. This change of position and movement is called – ‘Motion’. Not only all living organisms exhibit motion, but non-living things …
In the last chapter, we learnt that every living and non-living thing on the Earth exhibits motion. In this chapter, we will learn more about what causes the motion. This question has boggled the physicists for many centuries. To move any object, you require ‘Force’. In the same way, to stop any moving object, you …
You may have heard of the great scientist – Archimedes. He invented the science of mechanics and hydrostatics, gave us one of the most fundamental concepts of physics – the centre of gravity. Isaac Newton discovered the concept of Gravity. It is with this concept that we can study why everything that is thrown upwards …
Science always deals with tricks and tips that leave our minds baffled. For example – the term ‘work’ in regular world means – “activity involving mental or physical effort done in order to achieve a purpose or result.” Simple, isn’t it? But what if we tell you that ‘work’ in scientific term means – “is …
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