Notes, summaries, assignments, exams, and problems for Secondary education

Circulatory System

Deoxygenated blood from the body returns to the right atrium of the heart through the superior and inferior vena cavae. The right atrium contracts, pushing the blood through the tricuspid valve into the right ventricle. The right ventricle contracts, pumping the deoxygenated blood through the pulmonary valve into the pulmonary artery. The pulmonary artery carries the deoxygenated blood to the lungs, where it picks up oxygen and releases carbon dioxide through the process of gas exchange. Oxygenated blood returns from the lungs to the left atrium of the heart via the pulmonary veins. The left atrium contracts, pushing the oxygenated blood through the mitral valve into the left ventricle. The left ventricle contracts, pumping... Continue reading "Understanding the Circulatory and Reproductive Systems" »

Frankenstein: Key Questions Answered

1. Why did the monster enter the cottage when only the old man was home?

   Because the old man was nearly blind, he would not be terrified by the monster's appearance.

2. What was the monster’s revenge for the De Lacey family’s rejection?

   He waited until dark and then set fire to their cottage. A strong wind that night fanned the flames, and soon, the house was completely destroyed.

3. How did Victor feel when the monster requested a female companion?

   At first, Victor absolutely refused because the monster had killed his little brother. However, after a long period of reflection, he concluded that justice, due both to the monster and their fellow creatures, demanded that he comply with the request.

4. Why did Victor

... Continue reading "Frankenstein: Key Plot Points and Character Analysis" »

Base Form         Past Simple         Past Participle         Meaning

• bring          brought          brought          traer
• build          built          built          construir
• buy          bought          bought          comprar
• catch          caught          caught          coger
• choose          chose          chosen          elegir
• come          came          came          venir
• cut          cut          cut          cortar
• do          did          done          hacer
• dream          dreamed          dreamed         

... Continue reading "Essential English Verbs: Forms and Meanings" »

What Are Rocks?

Rocks are solid aggregates of minerals. They are more common than individual minerals.

The Three Types of Rocks

There are three different types of rocks:

• Igneous
• Sedimentary
• Metamorphic

Igneous Rocks

Igneous rocks are formed from magma that has cooled and solidified.

Plutonic Rocks

These rocks are formed deep underground, and the cooling process is very slow. The slower the cooling process, the larger the crystals formed (e.g., granite).

Volcanic Rocks

These rocks are formed on the surface, often related to volcanoes. The cooling process is very quick, preventing the formation of visible crystals (e.g., obsidian, pumice).

Sedimentary Rocks

Sedimentary rocks are made of fragments of other rocks (sediments). They often contain fossils.

Formation

... Continue reading "Classification and Formation of Earth's Rocks" »

The Allegra Horror Story: Plot Notes

Adrian is the narrator.

Adrian's Arrival at Villa Henderson

Adrian and his family went on vacation. A terrible storm forced them to stop in Villa Henderson. In Villa Henderson, Adrian meets Margaret (Granny), Chiara (Mother), and Allegra (Daughter).

The Mystery of the Changing Girl

That night, a little girl appeared in Adrian's room. The weather was rainy and there was strong wind. Adrian didn't understand why she was standing there, and suddenly, she was sleeping in his bed.

The next morning, Adrian was surprised because Allegra initially had blond hair and blue eyes, but the morning after that, she had black hair and brown eyes.

Character Drafts and Descriptions

The following sections detail different versions... Continue reading "The Allegra Mystery: Suspense Story Character Notes" »

United Nations (UN)

The UN facilitates international cooperation in law, security, development, human rights, and peace.

UNESCO

United Nations Educational, Scientific and Cultural Organization: Focuses on education, science, and culture.

FAO

Food and Agriculture Organization: Leads efforts to combat hunger and improve nutrition.

ILO

International Labour Organization: Addresses labor issues and work relations.

UNICEF

United Nations International Children's Fund: Provides aid to children globally.

WHO

World Health Organization: Coordinates international public health initiatives.

IAEA

International Atomic Energy Agency: Promotes peaceful use of nuclear energy.

NATO

North Atlantic Treaty Organization: A military alliance for collective defense.

OPEC

Organization

... Continue reading "Key International Organizations: Roles and Functions" »

The cell is the basic unit of which they are made all living things. It is the smallest unit capable of performing all the functions that characterize a living being.

Depending on whether a body is formed by one or more cells can be:

Unicellular organisms. They consist of a single cell that performs all the functions necessary for survival. Sometimes, several single-celled organisms living together colonies. (like amoeba)

Multicellular organisms. Consist of multiple cells that lose the ability to survive alone. Each cell performs a specific task, and all work together to survive the body (such as plants and animals). Our body is composed of a large number of cells. People are multicellular beings.

The cells in our body can have different shape... Continue reading "The cell, the respiratory system, the organelles, gases, diffusion, active transport ..." »

11.1. Their Great-aunt from England wants Herrnione eats ro stay with the Durrells.
11.2. They move to a villa srnaller so that they can tell Great-aunt Hermione that she cannot come to stay with thern Because they havent got enough room.
12.1. In the new town, Gerry has the opportunity to observe Sorne Ladybugs and green transparent Sorne CAJL gecko lizards.
12.2. With Mr Kralefsky, Gerry spends part of every Jesson talking about birds but I also Leams a lot of history, geography and French.
12.3. Kralefsky's mother tells Gerry that flowers talk and that they have long conversations, Although she can not understand their lan gauge.
12.4. The Magpies drop papers all over the floor and paper clips all over the carpet and bed. They make... Continue reading "My family and other animals" »

Berenice:

To begin, let us summarize the story of Edgar Allan Poe entitled "Berenice" and then analyze your story and characters.
The story begins with a reflection of Egaeus talking about his childhood, then talks about his cousin Berenice, tells how they grew up together and their different characteristics: Egaeus is described as a sickly person, wrapped in melancholy, self-contained and delivered in body and soul of intense meditation. Instead, Berenice is fast, funny and overflowing forces.
Egaeus Berenice explains that suffers from a disease that transmuted physically and morally. This was a strange illness that began as epilepsy and often ended in catalepsy (condition in which one enters a stationary state, similar to that of the dead)

... Continue reading "Analysis berenice" »

The History of Al-Andalus (711–1492)

Al-Andalus was the Muslim state established in the Iberian Peninsula in the 8th century. Its borders and government changed significantly over the centuries, primarily due to internal disputes between different groups.

The Conquest of the Iberian Peninsula (711–718)

In 711, a small Muslim group led by Tariq crossed the Strait of Gibraltar and defeated the Visigoths at the Battle of Guadalete. The Visigothic Kingdom was suffering an economic crisis, which facilitated the advance of subsequent Muslim armies. By 722, they controlled almost all the peninsula except a narrow strip in the north where the Hispano-Visigoths took refuge.

After conquering Hispania, the Umayyad Caliph of Damascus established the Emirate... Continue reading "Al-Andalus: Islamic Rule and Medieval Iberian Kingdoms" »