1 When you hold the ice tray with your hands, why do your fingers stick to it?
2. How does soap clean the dirt of our bodies and clothes?
3 While filling liquid in a bottle with the help of a funnel, you must have noticed that often Fluid collects in the funnel, and you have to raise the horn again and again as it cannot flow down. Do you know the reason for this?
4 Have you seen smoke rising from the ice cubes? What is this smoke, and why is it formed?
5. Who is Lee Kun Hee, and why is it in the news?
1 When you hold the ice tray with your hands, why do your fingers stick to it?
There is always some moisture on your fingers. When you touch a bunch of snow, the name of your fingers gets frozen. The pressure of the limbs makes the frozen moisture stick to the ice placed in the tray.
2. How does soap clean the dirt off our bodies and clothes?
There are two types of scum particles - oil in some If there is an electric charge in some. Washing with water alone does not do any good as these particles stick tightly to our bodies and clothes. The second problem is that oil does not dissolve in water at all. Soap atoms have such a structure that they stick to the particles of grease and scum—after this, washing these dirty clothes with water washes off their dirt.
3 While filling liquid in a bottle with the help of a funnel, you must have noticed that often Fluid collects in the funnel, and you have to raise the horn again and again as it cannot flow down. Do you know the reason for this?
As the liquid enters the bottle, it compresses the air trapped inside the bottle. After a while, the air pressure in the bottle becomes so much that it can handle the weight of the liquid-filled in the top funnel. You have to lift the horn a little so that the air trapped inside the bottle can come out. After this, the liquid starts flowing again in the bottle.
4 Have you seen smoke rising from the ice cubes?
What is this smoke, and why is it formed? Something like thick smoke comes out of the ice block kept outside. This smoke is not a gas but a vapor that gets frozen around it due to ice freezing. When the air around the ice becomes too cold, some of its air turns into water droplets. The frozen vapor looks like smoke in a gust of air.
5. Who is Lee Kun Hee, and why is it in the news?
Born on January 9, 1942, in Taekyu, South Korea, Lee Kun Hee is the chairman of Samsung Group. His father, Lee Byung Chul, started a Samsung company. Had it. Initially, this company used to export fruits and vegetables. After joining the company in 1968, Lee transformed it. Today Samsung has become a reputed brand in the world. Lee's net worth is $20 billion.
In 2013, Force Magazine ranked him 41st in the list of the most influential people in the world. Lee holds a bachelor's degree in economics from Waseda University. He did his MBA from George Washington University. He can speak Korean, English, and Japanese. Lee is well known for motivating his employees. Once he called all the employees in Frankfurt and gave a speech for three consecutive days and encouraged them to move forward.