When snow passes through certain layers of very dry air, it can go directly from a solid state to a gaseous one without even bothering...
In mint leaves, it is mainly a substance called menthol that does all the work. Menthol is an organic molecule belonging to the family of...
The simple reason why the Earth orbits around the Sun is that our star exerts a gravitational force on it. This is based on what...
When a big storm forms, you have air currents that stir and mix water and ice particles in the cloud. These movements create electric charges: the particles...
The geography of a region can really change the game when it comes to extreme weather events. For example, areas near large mountain ranges are...
During a storm, clouds become electrified due to the friction between ice crystals and water droplets that violently swirl inside. This friction separates electric charges: the bottom...
The surface of our planet is divided into huge pieces, called tectonic plates, which float on a semi-fluid layer. These plates are constantly moving, slowly...
Marine sponges spend their lives filtering the water around them. They do not move, but it is their billions of specialized cells, called choanocytes, that...
The different colors of ash ejected by volcanoes often come from the minerals contained within. For example, a good amount of iron or magnesium gives...
Jellyfish have tentacles filled with thousands of tiny cells called cnidocytes. In each cnidocyte, there are kinds of tiny venomous harpoons, nematocysts, ready to be...
