Science

If you’ve ever wondered why the sea is so salty, you’re not alone. More than two-thirds of the Earth’s surface is covered with water. Of that, 97% of it is salty seawater. The remaining 3% is fresh water, which is trapped in glaciers and ice caps. Fresh water also contributes a great … Read more

Why does ice float rather than sink? The reason is simple: ice is a solid, which means it has a lower density than water. Because of this, ice floats on water. This phenomenon is called buoyancy and occurs because a solid’s weight exerts an equal amount of pressure on water and a … Read more