OUR WINDOW TO THE WORLD: SONIA´S BLOG

UNIT 2: RELIEF

VIDEO TUTORIALTO SEE THE RELIEF WITH A 3D EFFECT THROUGH GOOGLE EARTH

Here, there is a video which shows you how to make bigger the relief with Google Earth and obtain a 3D effect (however it is in French).

VIDEO ABOUT THE EARTH SCIENCE

This video is about the Earth Science and the scientist that work in this field. It gives us the reasons for their investigations and the importance of their results. I hope you find it interesting!

VIDEO ABOUT GEOLOGICAL TIME SCALE

The next video is about the geological ages. It is a school science project. Enjoy it.

VIDEOS ABOUT THE STRUCTURE OF THE EARTH

Here there are two videos about the structure of the Earh

THE THEORY OF CONTINENTAL DRIFT BY WEGENER

The next video is a brief introduction to continental drift.

650 MILION YEARS OF CONTINENTAL DRIFT IN 1:19 MIN (VIDEO)

http://edutube.org/en/video/650-million-years-continental-drift-119-min

CONTINENTAL DRIFT AND PLATES TECTONIC THEORY FOR KIDS

EARTH 100 MILLION YEARS FROM NOW

Earth's landmasses were not always what they are today. Continents formed as Earth's crustal plates shifted and collided over long periods of time. This video shows how today's continents are thought to have evolved over the last 600 million years, and where they'll end up in the next 100 million years. Paleogeographic Views of Earth's History provided by Ron Blakey, Professor of Geology, Northern Arizona University. It is only images with texts and music but it is really visual and interesting.

ABOUT PLATES TECTONIC

This is a interesting video about the formation of the continents and Plate Tectonics. It is quite easy o undersand. I recommend it to you.

VIDEO: THE EARLY EARTH AND THE PLATE TECTONICS

If you want to know a lot of plates tectonic you can visit and surfing through this page.

http://www.geolsoc.org.uk/Plate-Tectonics

Here, you can watch another interesting video about the same topic.

http://www.sciencechannel.com/tv-shows/greatest-discoveries/videos/100-greatest-discoveries-plate-tectonics.htm

FOLDS AND FAULTS

Folds are deformations of the Earth's surface where rock layers bend. And anticline is created when rock layers fold upwards and a syncline is when they fold downwards.

Faults are breaks in rock layers where the rock is too hard to bend. The hanging wall is land that is pushed up, while lower land is called the footwall.

Here, I have posted some photographs of folds and faults.

FOLD

FAULTS

SAN ANDREAS FAULT (AERIAL VIEW)

VIDEO : GEOLOGICAL FAULTS AND FOLDS MODEL

Easily comprehensible model kit helps students learn about the faults and folds of the earth.

Highly resilient and environmentally friendly EVA foam.

Multi-color sponge makes the deformation and displacement of strata easy to understand

VIDEOS ABOUT EARTHQUAKES

Here, there are a video about earthquakes, which are caused when tectonic plates of the Earth's crust move against each other causing a disturbance.Watch this animated video explaining how earthquakes occur and how they can also be measured.

Here you have a curious video in which you can see an animation of all officially reported earthquakes from January 2012

Here, you have two more videos, in this case made by National Geographic. Click on the links to know more things about this topic.

http://video.nationalgeographic.com/video/101-videos/earthquake-101

http://video.nationalgeographic.com/video/inside-earthquake

IRIS (INCORPORATED RESEARCH INSTITUTION FOR SEISMOLOGY)

Here you have a link to IRIS

http://www.iris.edu/hq/programs/education_and_outreach/museum_displays/permanent_displays

VIDEOS ABOUT VOLCANOES

Watch this video to know more about volcanoes, where the name comes from, how they are formed and so on. This is a very simple but also very clear video about volcanoes.

Here, there is another video about the topic.The cycle of lava as a destructive and constructive force, building the structure of volcanoes and powering their devastating impact.

Here, you have a link where you can learn a lot of things related to the volcanoes.

http://www.geolsoc.org.uk/ks3/gsl/education/resources/rockcycle/page3531.html

This video made by National Geographic shows spectacular images related to the volcanoes. Click on the link and enjoy it.

http://video.nationalgeographic.com/video/volcano-lava

The Galápagos's Sierra Negra volcano erupts, sending rivers of lava into its caldera.

http://video.nationalgeographic.com/video/sierra-negra-volcano-lex

VOLCANO'S CROSS SECTION AND VOCABULARY ABOUT THEIR PARTS.

Structure of a volcano. Image credit: NASA

The diagram with this article shows all the different parts of a volcano. Here’s more information about each part of a volcano.

Magma Chamber – A magma chamber is a large underground pool of molten rock sitting underneath the Earth’s crust. This magma is less dense than the surrounding mantle and so it seeps up to the surface through cracks and flaws in the crust. When it reaches the surface, it results in a volcanic eruption.
Lava – Lava is the rock expelled from a volcano during an eruption. When it first comes out, the lava can have a temperature higher than 700 degrees C. It then flows downhill from the eruption point until it cools and hardens.
Main Vent – A volcano’s main vent is the point in the Earth’s crust where hot magma has reached the surface. The familiar cone-shaped volcano builds up as ash, rock and lava ejected during eruptions fall back to Earth around the vent.
Crater – A volcanic crater is a circular depression in the ground caused by volcanic activity. A volcano’s vents are located at the bottom of the crater.
Pyroclastic Flow – Pyroclastic flows are fast moving currents of hot gas and rock with travel down hill from a volcano, reaching speeds of 700 km/hour. The gas can reach temperatures of more than 1,000 degrees C, and is one of the greatest dangers from volcanic eruptions.
Ash Cloud – Volcanic ash consists of small pieces of pulverized rock and glass created during volcanic eruptions. These fragments are so small, and heated to such a temperature that they can be carried in the air for many kilometers.
Volcanic Bombs – Volcanic bombs are chunks of lava blasted into the air which solidify before they reach the ground. Some bombs can be extremely large, measuring 5-6 meters in diameter and landing more than 500 meters from the volcanic vent.
Secondary Vent – On large volcanoes, magma will reach the surface through several different vents, and not just the main vent. This can form cones, eject lava, and cause destruction.
Secondary Cone – Secondary cones build up around secondary vents on larger volcanoes.