Octavo Básico
Frecuencia absoluta
La frecuencia absoluta de una variable es el número de veces que aparece en la muestra dicho valor de la variable. Ejemplo: consideremos una muestra de 20 niños que pertenecen al coro del colegio. Del total de la muestra de 20 niños, 4 están en cuarto básico; 7 en quinto básico; 5 en sexto básico; […]
Expresión algebraica
El resultado de combinar mediante las operaciones de adición y sustracción, uno o más términos algebraicos, se denomina expresión algebraica. Para entender de qué estamos hablando debemos partir aprendiendo algunos conceptos básicos del álgebra. Vamos a conocerlos!! Término algebraico Un término algebraico es una multiplicación en que uno de los factores es una constante que […]
The stomach
Its shape is similar to a J-shaped pouch. It is located beneath the ribs, in the upper portion of the abdominal cavity, to the bottom left of the liver. Is a hollow organ with a capacity to increase its size up to 20 times. It receives the food that has been semi-grinded-up and mixed in […]
The digestive system
Our body needs to obtain energy to live and perform an assortment of activities everyday. The digestive system has the essential task of processing all of the food we intake, converting it chemically to only absorb the substances the body needs, due to the functions performed by each of its organs. Mouth digestion Food is […]
Radical Governments
Unfortunately, the economical tranquility given by the second government of Arturo Alessandri wasnt sufficient to completely stabilize the country. Differences between the governing parties eventually subtracted the support from the radicals, who, from the opposing side, got important triumphs.
Biogeography
The abundance of precipitations and, consequently, the greater humidity present in the ambiance favors the development of diverse hygromorphic species and vegetal associations that need permanent water supplies. Among these associations we can find the evergreen and rain forests. The local vegetal biodiversity groups around pure unities, for instance, in larch tree or lenga forests. […]
Multiple choice test
1.- Which is the capital of the region of Maule? a) Curico b) Cauquenes c) Talca d) Linares Correct response: c 2.- Where does the Maule river flow into? a) north of the city of Constitucion b) near the beach town of Iloca c) into Vichuquen lake d) south of Llico Correct response: a 3.- […]
