We explain what zinc is, who discovered it and the properties it has. Also, what are its characteristics, uses and importance. What is zinc? Zinc or zinc is a metallic chemical element , present in the Periodic Table in group 12, part of the transition metals. Its atomic number is 30 and its symbol is Zn, from its original name in German: Zink ,…
We explain what autotrophic organisms are, how they are classified, and the phases of their nutrition. Also, its characteristics and examples. What are autotrophic organisms? It is known to those autotrophic organisms can synthesize their own food substances from inorganic material and a source of energy , such as light sun. Its name comes from the Greek auto, “proper” and trophos , ” food .” These organisms…
We explain what drinking water is and what are the main characteristics. In addition, its chemical and microbiological characteristics. Which is the potable water? Water is an increasingly scarce resource and many populations in the world still remain without access to a source of drinking water. Institutions such as UNICEF and the World Health Organization (WHO) have the issue of access to drinking…
We explain what insects are, what their anatomy is like and what they feed on. Also, what are its characteristics, habitat and more. What are insects? Insects are a class of invertebrate animals belonging to the phylum of arthropods , along with arachnids, crustaceans and myriapods . They are the most abundant and diverse animals in the entire world, as well as the most evolutionarily successful. They represent…
We explain what starfish are, what their habitat and food are like. Also, what are its characteristics and reproduction. What are starfish? It is popularly known as starfish to a class (Asteroidea) of underwater living beings and invertebrates , belonging to the phylum of echinoderms (such as sea urchins), whose bodies are made up of five or…
We explain what the oceans are, how are their dimensions and classification. In addition, its characteristics, contamination and more. What are the oceans? An ocean is a large expanse of salty water that separates two or more terrestrial continents . These aquatic extensions cover most of the surface of our planet (71% of it) and communicate with each…
We explain everything about Europe, the history of this continent and its geographical limits. In addition, its characteristics, flora, fauna and more. What is Europe? Europe is the second smallest continent in the world and the third most populous , with some 740 million inhabitants. It is made up of the Eurasian peninsula, the great continental mass that it…
We explain what the Crusades were, what their causes were and how they are classified. In addition, its characteristics and consequences. What were the Crusades? It is known as the Crusades to a series of military campaigns carried out by much of Christian Europe , in particular the France of the Capetians and the Holy Roman Empire, under the impulse of…
We explain what time is and how this magnitude can be measured. Also, what are its characteristics and measuring devices? What is time? When we speak of time, we refer to a physical magnitude that allows ordering the events that occur in sequences . Through the notion of time, we perceive the separation between one and the other and…
We explain what scientific knowledge is and what its general characteristics are. Also, what is the scientific method and more. What is scientific knowledge? Scientific knowledge is that which arises from applying a structured procedure known as the scientific method . In essence, the scientific method is based on the formulation of a hypothesis and subsequent experimentation, in order to put…