Hydrogen. 6 main elements on Earth. Dikmann N.

All living creatures - from microscopic bacteria to blue whales - consist mainly of six elements: hydrogen, carbon, nitrogen, oxygen, phosphorus and sulfur. These chemical elements are building blocks of life on Earth. Each book of the series in an accessible language tells the story of one of these elements, explaining what it is, how it was discovered, where it is present, how it interacts with other elements and what makes it important for life processes. At the end of each book of young readers, a test awaits to verify the acquired material.