Investigate - The natural environment. Ecosystems

Most of the energy used by living things originally comes from sunlight which is trapped by autotrophs (or producers). This energy is then transferred from the producers to all other living things…

Think about it. The physical properties of matter

Remember what you have studied in this section and answer the questions: Can solids be compressed? Give arguments for and against this idea. All materials expand when you heat them. Why? →…

Investigate - Obtaining and using energy

Energy drives the Universe and is part of all the changes which take place on Earth. The Sun is our main source of energy. Without it, there would be no life and most other sources of energy would not…

Check. Fascism in Italy

Remember what you have studied in this section and answer the questions: Make a concept map to describe post-war Italy's social and political problems. What factors facilitated the rise of fascism?…

Crisis in the dynasty and the dictatorship

2.1. The system collapses (1917-1923) After the crisis of 1917, Alfonso XIII's monarchy was faced with growing political instability, a strengthening labour movement and an increasingly complex Rif…

Towards a united Europe - A bipolar world: the cold war and decolonisati...

With the world divided into two blocs, Europe had very little influence. Some European politicians and thinkers began to propose uniting the countries of Europe to form a powerful coalition. In 1947,…

Q organica-uc

Presentación sobre Química Orgánica realizado en la Universidad Católica de Chile y presentada en Educarchile

Grammar Reference | LearnEnglish | British Council | Reported speech 1

BBC offers an online exercise to practise reported speech sentences.

BAILE - DANZA - BALLET .docx

Resuelve. Resolución de problemas (2)

Pedro, Juan y Luis coleccionan monedas. Pedro tiene el triple de monedas que Juan. Luis tiene 16 monedas más que Juan. Entre los tres tienen 196 monedas. Escribe una igualdad que exprese que la suma de…