Nitrogeno

N (nitrogeno)

Quien lo descubrio?: Daniel Rutheford

Como?: En el estudio de la composicion del aire, Joseph Black, obtuvo un gas que permitia la combustion y la vida y otro gas que no la permitia.Rudeforth estudio este gas y llego a la conclusion de que era "aire flogitizado" donde nada ardia y nada vivia en el.

Cuando?: 1772

Donde?: Escosia

The 2004 Asian tsunami in a magazine

https://madmagz.com/magazine/808832

Rocks video

the teacher ask us to make a video about two diferent types of rocks and their uses now a days, before, some characteristics, etc. We chosed the obsidian and diamond.

obsidian and diamond information

	obsidian	img	diamond	img
now use	now obsidian is used to make mirrors, jewelry and is an ideal material to make medical tools		diamond is very strong you can even cut with them,we can also see different types of jewelry like necklace, bracelets or rings
then use	ancient people also work with this material for doing arms like knives and arrowheads		the first use of diamonds was to learn more about the Earth and the formation of oceans
creations	we can also see obsidian in old mayan Art  that was used for rituals
type,	It is an igneous rock (produced by volcanic eruption outside the volcano)		mineral made of carbon
location	mostly   obsidian can be found in USA, Canadá, México, Iceland,and Italy		The diamond it is mostly found on russia on the underground
caracteristics	this is rock is generaly found in Black ,but it can also be brown, green and black with white dots		It is chemically resistant and it is the hardest known natural substance.

some definitions...

1- Ocean Trenches: deep hole in the ocean crust, usually near a subduction zone

2- Mid-Ocean Ridge: an elevated part of the oceanic crust between two constructive plates

3- ?Tectonic Fault: Are rigid plates of solid rock that make up the surface of the Earth, floating on a layer of molten rock that makes up the mantle, the next layer of the planet.

Conservative movement→ fault

5- Formation of Islands: island formation are volcanic activity and continental drift

4- San Andreas Fault: An active strike-slip fault in W United States, extending from San Francisco to California and forming the on-land portion of the western margin of the North American Plate.   

6- Formation of Mountains: result of tectonic forces or volcanism

The 2004 Asian tsunami