Notes, abstracts, papers, exams and problems of Secondary education

Nutrition: The Foundation of Health

1.1 Definition

Nutrition is the study of foods and their impact on our growth and well-being. It encompasses the behaviors and social factors that influence our food choices.

Foods provide us with energy (calories) and essential nutrients such as protein, fat, carbohydrates, vitamins, minerals, and water. Consuming a balanced diet provides the energy we need for daily activities, helps maintain a healthy weight, and reduces the risk of chronic diseases like diabetes and heart disease.

Metabolism: The Body's Energy Engine

2.1 Definition

Metabolism refers to the chemical processes that occur within living cells and organisms to sustain life. These processes involve breaking down substances to release energy and synthesizing... Continue reading "Understanding Nutrition and Metabolism: Essential Concepts for Health" »

Economic Activity

Economic activity is what humans undertake to acquire goods (products and services) that satisfy consumer needs.

Economic Goods

Economic goods are products and services generated by economic activity.

Products

Products are goods obtained directly from nature (e.g., fish) or transformed into something else (e.g., clothes, books). They can be classified by:

• Composition: They can be consumable (durable consumer goods, such as computers, or non-durable, such as pizza) or capital goods (tools).
• Function: They can be intermediate goods (wool produced by a sheep) or finished goods (the shirt made from this wool).
• Ownership: They can be private (belonging to people) or public (belonging to the state).

Factors of Production

Factors of production... Continue reading "Understanding Economic Activity: Sectors and Factors" »

1921 Mussolini founded the National Fascist Party

and proclaimed himself the leader. Fascism: support of the board of the social sector, renew Italy. 1922 blackshirts (paramilitary militias) undertook Rome. King Victor Emanuel III entrusted him to form a new government. Mussolini has social, political cultural, politics, economy, society power.

1925 assassination of Matteotti = the Parliament dissolved

, fascism dictatorship installed. Crisis in 1929 unemployment- Public Works/ imperialist expansion by the state = good propaganda

1930 Italy allied with Germany

The Treaty of Versailles pulled Germany into misery. Violent political and social situation = Nazis party led by Adolf Hitler 1933 enormous inflation lead to nowhere. Munich Putsch- I failed... Continue reading "Rise of Fascism and Nazism Leading to World War II" »

Imagen Escaleras

• Promulgation of the Constitution
• Recognize individual rights like equality before the law
• Established national sovereignty and the separation of powers
• Cortes of Cadiz
• Liberal system

Ej 11: Industrial Revolution

• Around 1830
• Two main characteristics: slow and partial
• Five causes of industrialization: low demand for industrial articles, lack of entrepreneurial spirit among the bourgeoisie, technological gap, shortage of raw materials, political instability
• Basic industrial sectors: mining, iron and steel industry, textile sector
• Concentrated in Catalonia: textile sector
• Transport: thanks to the law of highways
• First railways: Barcelona-Mataro, Madrid-Aranjuez
• Scarce due to reduced international demand
• Badly affected by the loss of American

• Thermal energy is the energy that is exchanged between two bodies or systems of matter that have different temperatures. Thermal energy is also exchanged when a body changes from one physical state to another.

• Kinetic energy (Ec) is the energy of a body in motion. It depends on the mass and the speed of the body.

• Potential energy (Ep) is the energy of a body determined by its position. It depends on the body’s mass and position

• Gravitational Potential Energy
• Elastic potential energy

• Electrical energy is energy produced by the movement of charged particles (electrons), due to a potential difference.

• Radiant energy is energy carried by the electromagnetic waves, such as light, radio waves, microwaves, X-ray or γ rays. It’s called radiation. 

• Chemical

U11: Count on

to be confident that you can depend on someone. Fall out: to argue with someone and stop being friendly with them. Finish with: to end a romantic relationship with someone. go off: to stop linking or being interested in someone or something. Hit it off: people hit it off, they like each other and become friendly immediately. let down: to disappoint someone by failing to do what you agreed to do or were expected to do. look down on: to think that you are better than someone. look up to: to admire and respect someone. stick together: people stick together, they support and help each other. take after: to be similar to an older member of you family in appearance or character. Compound adjectives: Badly behaved: behaving in a way that... Continue reading "English Phrasal Verbs and Compound Adjectives" »

What is economic activity?

Economic activities are all the processes used to obtain the goods and services that people need. The three phases of economic activity are:

• Production → is all the goods and services which are created as a result of an economic activity.
• Distribution → is the process of moving goods and services from the place of production to the consumer.
• Consumption → is all the goods and services that people buy to satisfy their wants and needs.

History of payment

• Barter → direct exchange of goods
• Natural coins → valuable natural items, with an agreed value like shells, cocoa, salt, furs
• Metal coins → the first metal coins were made in Lidia (present-day Turkey) in the 7th century BC
• Paper money → notes first appeared in

Projecting Points and Shapes

Projecting points onto a plane involves rays passing through the points and intersecting the plane. These intersections are called projections. Projecting a shape involves projecting its vertices.

Projection Systems

There are two main systems of projection:

Perspective Projection

When the rays originate from a single point, the system is called perspective projection. The resulting shape is proportionally smaller or larger.

Parallel Projection

When the rays are parallel, the system is called parallel projection. The resulting shape is congruent (same shape and size). There are two variations:

1. Oblique Projection: The rays are oblique to the projection plane.

2. Orthographic Projection: The rays are perpendicular to the projection