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How Do Clouds Form

Clouds are a collection of water drops or ice crystals that have been deposited on particles like dust, smoke, pollen, etc. in the atmosphere. They are a part of the water cycle. How Are Clouds Formed Clouds are formed by the condensation of [...]

Why Does Oil Float on Water

What Property of Oil Makes It Float on Water Oil being less dense than water floats on it. Had it been denser than water like iron, it would have sunk. Density is mass per unit volume. It means that if you take a cubic cm (cc) of oil, its mass [...]

Why Does Water Expand When It Freezes

Does Water Expand When It Freezes? Yes. Ice has a lesser density than water.

Gold Foil Experiment

Who Did the Gold Foil Experiment? The gold foil experiment was a pathbreaking work done by scientists Hans Geiger and Ernest Marsden under the supervision of Nobel laureate physicist Ernest Rutherford that led to the discovery of the proper [...]