When it rains, it pours. The only way to stay dry when there are strong winds is a raincoat. You may use one when you go to school or you may have seen your dad wear one when he goes for work in the rainy season. Haven't you ever wondered how these raincoats are different from the normal clothes you wear?
On a cold winter morning, if you take a walk outside in our nation's capital, you are likely to be surrounded by a thick cloud of smoke. And you may not be able to see anything at all. This is because of smog. Here is a little clarity about why things get smoky during the winters.
Everyone needs to stay clean, whether we like it or not. After a rough day on the playing field, a bath with soap gives us that fresh feeling. Soap is wonderful, the way it bubbles and the sweet smell that it has. Apart from bathing, we wash our clothes and clean our utensils with soap. We use soap everyday but do we know the story of soap? It is an excellent example of everyday chemistry in action.
We all love to have a sip of our favourite soft drink when we are thirsty, especially in summers. And we also love to have a little fizz in it. This fizz is the bubbly effervescence that is produced by adding pressurized carbon dioxide gas to water. It's also called carbonated water or just soda water.
Have you ever been to a hospital with a person who needed to have a CAT scan done and wondered what that was all about? A CAT scan is a special kind of X-ray. It provides a three dimensional image of what is inside an object by using several two dimensional X-ray images. You may have seen a nurse giving patients an injection before the CAT scan begins. This is usually a solution of iodine.
The earth is running out of fossil fuel. Soon there will be none left. So, the search for a clean and efficient alternative is on in full-swing. Harnessing the power of the waves is one way to create energy. Have you felt the power of the waves when taking a bath in the sea? The energy produced by surface ocean waves is tremendous. It's used to create electricity, to pump water into reservoir, and in desalination.
If you have been in the kitchen when your mother boils some water or milk, you may notice the flame of the gas burner turns yellow when liquid comes in contact with the flame. Did you know that there is chemistry at work behind this?