Earth Science: Physics and Technology – Physics – Energy Even in ancient times or earlier, humans have been wondering about the matter of the world. The idea of four basic elements was widespread until the Middle Ages. These elements were fire, water, earth, and air. Modern physics poses the same question about nature and its … Read more
Earth Science: Matter – Atoms: the Building Blocks of Nature The first step in the development of modern chemistry was the recognition that atoms existed. Today it is known that every element consists of a specific kind of atom. At the start of the 19th century, John Dalton. a science teacher from Manchester, England, promoted … Read more
Chemistry – Inorganic chemistry – Matter The ancient Greek philosophers believed that all matter consisted of four elements: fire, water, air, and earth. It was not until modern times that researchers succeeded in identifying the building blocks of matter. Through this they were able to give order to the various materials in the world and … Read more
Pocket Genius Science: Matter and materials – States of matter Matter is everywhere, but you cannot always see it. There are four main types, or states, of matter—solid, liquid, gas, and plasma. Each state is made up of moving particles, but they look and behave very differently. Solids In solids, the particles are packed together … Read more
