Discovery Science: Earth- Evolution – The First Biological Molecules

Earth Science:  Origins Of Life The origins of life on Earth may never be proved with complete certainty. It seems likely that simple organic molecules combined under the right environmental conditions, eventually producing cell-like organisms. From these, prokaryotic and later eukaryotic cells developed. These cells were the starting point for the evolution of multicelled organisms … Read more

Pocket Genius Science: Matter and materials – Molecules

Facts At Your Fingertips: Matter and materials – Molecules Most atoms do not exist on their own, but bond with other atoms—either ones of their own type or of another element—to form molecules. Atoms join together by sharing their electrons, a process known as chemical bonding. Simple molecules The natural state of oxygen is nearly … Read more