L'accent, la dièresi, l'apòstrof i el guionet

L'accent, la dièresi, l'apòstrof i el guionet Els sons de la llengua. L'escriptura dels sons

La gramàtica: morfologia nominal

Invetigate. Learn to observe different kinds of change in matter

In this experiment you will observe physical and chemical changes in matter. Follow the instructions carefully. Copy and complete the table below. Place a half spatula of calcium carbonate into a test…

Energy transfer: heat

1.1. Heat The particles that make up matter store energy: Heat or thermal energy is the energy that is transferred from hot bodies to cold bodies (figure 1). All the particles that make up bodies have…

The reflection of sound

7.1. Reflection of sound Sound is transmitted in a straight line. When it meets obstacles that it cannot cross, like a wall or a rock, it is reflected back in the other direction. Two phenomena caused…

Final Autoevaluation T12 10 - Waves. Light and sound

Answer the questions: What are the effects of continually listening to very loud sounds? What is noise pollution? How can we reduce noise?

Interpret. Allegory of the stratified society

Which social classes are represented in this image? What does it say about the social classes?

Look. Methods of industrial concentration

Look at the different types of industrial concentration and explain the main characteristics of a trust, a cartel and a holding.

Describe. Blast furnaces

Describe air quality in the workplace.

The debate over women's suffrage

Decide what you like, but you must recognise your responsibility to allow this half of the human race to enter politics, so that politics are for both genders, because there is only one thing that men…