Investiga. Nuevos movimientos sociales

El nuevo orden internacional no ha sabido acabar con los conflictos y las desigualdades. Se extiende la conciencia de que muchos de los problemas actuales (económicos, sociales, etc.) son de ámbito…

Las lenguas del mundo

Les perífrasis verbals

Les perífrasis verbals La gramàtica: morfologia verbal

Work it out. Animal nutrition

Remember what you have studied in this section and answer the questions: Is it possible to find a digestive system that does not use mechanical processes? And chemical processes? Explain your answer.…

Think about it. Reproduction in mammals

Remember what you have studied in this section and answer the questions: What are the advantages of a) a long gestation period, and b) being born in the spring or summer? Describe the new-born offspring…

Check. Biomes

Remember what you have studied in this section and answer the questions: Is vegetation in tropical rainforests evergreen or deciduous? Why? Which biome has the highest annual rainfall? How does…

Classify. Metals and non-metals

Look at the diagram and answer the questions: Classify the elements in the table into metals and non-metals. Oxygen Nitrogen Chlorine Bromine Zinc Sulphur Sodium Iron Copper Gold Say what the physical…

Complete. Protons, neutrons and electrons

Create a table for protons, neutrons and electrons with the headings: charge and location in the atom, using the picture.

Forms of energy

1.1. Energy Energy is a property of matter which gives it the ability to produce change in its own physical and chemical properties and in those of other bodies. 1.2. The main forms of energy The main…

Describe. A working class home

Describe the worker's home. Compare it with the bourgeois home: size, plumbing, heat, furnishings.