Скачать с ютуб Why does the sky appear blue? plus 10 more videos.. в хорошем качестве

Why does the sky appear blue? plus 10 more videos..

Tyndall Effect - Why does the sky appear blue? Density - Why does oil float on water? Centrifugation - How is the principle of centrifugation helpful in blood banks? Balanced and Unbalanced Forces - Why don't we fall into the center of the earth? Solubility - Why does soda fizz when you shake it? Thermal Expansion - Why are gaps left between railway tracks? Mitosis - Why does a lizard's tail grow back? Atmospheric Pressure - Why don't we get crushed by atmospheric pressure? Newton's First Law of Motion - Why do you fall backwards when a bus starts suddenly? pH Value - Why is soil pH important to farmers? Sound - Why can't we hear sound in space?