What travels in a straight line, and helps us fight the darkness? It is named as the fastest thing around the universe. It can be seen. It can be created. It is helpful as well as threatening. What is it? To find the answer, check out these videos.
How do you think we are able to see things? How do our eyes perceive the visual appearance of things? The answer lies in the beautiful concept of “Light”. Sun is a primary source of light. But how does light reach us? And how does it travel from the Sun to the Earth? Watch our …
Have you ever tried to pass light through a solid wooden object? We know you did, but did you notice the SCIENCE in it? No light can pass through a solid wooden material, but it does form a shadow on the ground. A shadow is formed when an opaque object comes in between the traveling …
Take this experiment. Early in the morning, at 6.00 am, go out to your balcony. Close your eyes and concentrate on the sounds that you will hear. Surely, you would be able to recognise the sounds of birds, dogs, rustling trees, and others. But have you ever given a thought of how are you able …
Why do navigators, adventurers and travelers, usually keep a compass in their pocket? Well, it is to get a sense of direction during their journey. Compass contains a magnetic needle that has a north and south pole. This aids in detecting the direction of where one should move. A magnet is an object which produces …
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 …
Magnetic Effect of Electric Current and Electromagnetic Induction Read More »
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 …
Take this experiment. Walk towards the electrical switch board in your house. Switch on the light. Now think, how did electricity travel from the switch board to the light bulb? Electricity has changed the ways we work. Everything is dependent on electricity. This lesson is dedicated towards learning electric current and effects. Let’s begin
On a hot sunny day, air conditioners are the saviours. While on a cold snowy day, radiators make us feel comfortable. Both appliances run on electricity. Today we cannot imagine our lives without electricity. Right from a small electric bulb to huge equipment in industries, there are numerous devices that work on electricity. Metals like …
Basics of Electricity and Electric Current – Part 1 Read More »
How to tell if something is hot or cold? By the sense of touch! Touching a hot pan will let you know that the pan is hot and holding an ice-cream will let you know that it is cold. In this chapter, we will run through the science of HEAT. How do we measure it? …
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