UNIT 9 SOCIAL SCIENCE: THE ECONOMY

UNIT 8: ELECTRICITY AND MAGNETISM

UNIT 8 SOCIAL SCIENCE: 17th AND 18th CENTURIES IN SPAIN

THE 17th CENTURY: THE DECLINE OF THE SPANISH EMPIRE

UNIT 7 NATURAL SCIENCE: HEAT

UNIT 7: THE DISCOVERY OF AMERICA

UNIT 6 NATURAL SCIENCE: LIGHT

WHAT IS LIGHT?

UNIT 6 SOCIAL SCIENCE: THE CHRISTIAN RECONQUEST

UNIT 5 NATURAL SCIENCE: ENERGY

WHAT IS ENERGY?

Energy is the ability to do work or cause changes. It is present everywhere and in everything.

Energy causes the changes we see around us. For example, energy makes a ball at rest move when it is kicked.

Energy can exist in many forms. Chemical energy, light energy, nuclear energy, mechanical energy, thermal energy and electrical energy are different forms of energy. The energy we use on a daily basis is obtained from different energy sources.

UNIT 5 SOCIAL SCIENCE: THE MIDDLE AGES: THE VISIGOTH KINGDOM & AL-ANDALUS

THE MIDDLE AGES

The Middle Ages is the period marked by fall of the Roman Empire, in 476, up to the discovery of America in 1492.

1. THE VISIGOTH KINGDOM

After the 3rd century, the Roman Empire started to lose its territories and power. It was invaded by Germanic tribes who came from the north and east of Europe. In 476, the last Roman Emperor,  Rómulo Augusto, was defeated and the Empire was divided into small independent kingdoms.

The fall of the Roman Empire marks the beginning of the Middle Ages.

UNIT 4 NATURAL SCIENCE: RELATIONSHIPS IN ECOSYSTEMS

WHAT IS AN ECOSYSTEM? DO YOU REMEMBER IT?

An ecosystem is made up of living things and the physical environment, where they live. Living things are affected by different factors in the environment, for example, temperature and light. Ecosystems can be terrestrial, like forests and deserts, or aquatic, like seas and rivers.