Explain why the planets do not twinkle, but the stars twinkle. Why Stars Twinkle but Planets Don’t The twinkling of stars is a phenomenon observed due to atmospheric refraction. The
Give a reason why Sodium and potassium are stored in kerosene. Reason for Storing Sodium and Potassium in Kerosene These elements are highly reactive in the atmosphere and can catch
Why should an electrician use rubber gloves while repairing an electric switch at your home? Explain. Reason Behind Electricians Wearing Gloves During Repaire When repairing an electrical switch at your
A milkman adds a very small amount of baking soda to fresh milk. Why? Why Milkman Adds Baking Soda A milkman adds a very small quantity of baking soda to
Why is respiration considered an exothermic reaction? Respiration Considered An Exothermic Reaction A chemical reaction that releases energy either in the form of heat or light is scientifically termed an
Why do we need to wear mouthguards for certain sports? Why is Wearing A Mouthguard Necessary For Some Sports There are a few key reasons why mouthguards are recommended or
Why do we need to pedal a bicycle to move forward? Why is Pedaling Necessary To Make A Bicycle Move Forward The reason we need to pedal a bicycle to
Why do we need to wear goggles for swimming? Why is It Necessary To Wear Goggles While Swimming There are a few key reasons why it’s recommended to wear goggles
Why do we have wrinkly fingers after swimming or bath? Why Fingers Wrinkle After Bathing We like to swim, we like to take a bath and we also like to
Why does water evaporate on heating while oil doesn’t? Evaporation Of Water, Oil Does Not Evaporation happens at room temperature. When we heat something, boiling and vaporization happen. Vegetable oils,