Landforms. Glossary

Archipelago: An archipelago is a group or chain of islands clustered together in a sea or ocean.

Atoll: An atoll is a ring (or partial ring) of coral that forms an island in an ocean or sea. The coral sits atop a submerged volcanic cone.
  
More 

Speller and Quizz 

Cameron's Long Way Down: Mariana Trench

The Mariana Trench or Marianas Trench is the deepest part of the world's oceans. It is located in the western Pacific Ocean, to the east of the Mariana Islands. The trench is about 2,550 kilometres (1,580 mi) long but has an average width of only 69 kilometres (43 mi). More

Video

The Mariana Trench. National Geographic

Time Zones

What Are They & Why Do We Need Them?

We measure the day by saying that the sun is at it's highest point at 12 o'clock, midday. Because the earth spins, as it travels around the sun, one half of the earth is in darkness and one half in light, all the time. This brings us to a problem. If it is midday where you are, on the opposite side of the earth, it is dark, so what time is it on the opposite side of the world?

Theory

Videos

Interactive Map

Projectos 4º ESO. Links

Links

SECONDARY SECTOR

This sector generally takes the output of the primary sector and manufactures finished goods. 

This sector is often divided into light industry and heavy industry. 

Many of these industries consume large amounts of energy and require factories and machinery to convert the raw materials into goods and products. They also produce waste materials and waste heat that may pose environmental problems or cause pollution.

ORIGIN:

INDUSTRIES IN THE SECONDARY SECTOR:

History Periods

History Periods

History 1º ESO

Alhambra y Mezquita de Córdoba

 
Información Páginas 27-31