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

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Coh3 chemical name

Classified in Chemistry

Written at on English with a size of 2.51 KB.

 a mixture is a physical combination of two or more subtances : heterogeneous  mixture we see the various  because  not combined  evenly and homogeneous mixture that  cannot see the subtans . .Magnetic separation is a physical method of separating mixtures, which uses the magnetic susceptibility of some of its components. To do this, he resorts to exposing the mixture to a magnet (or a sufficiently strong magnetic field) for a period of time. Decantation is a physical method used for the separation of heterogeneous mixtures, which is used to separate a solid from one or two liquids of different density. It is an important process in wastewater treatment.A chemical reaction is the change of a substance into a new one that has a different

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Colonial Imperialism: Origins, Motivations, and Legitimization

Classified in Geography

Written at on English with a size of 718 bytes.

Colonial imperialism originated due to the necessity of industrialized countries in Europe to find new markets where they could sell their industrial production, obtain raw materials, and invest their excess capital. Additionally, the economic changes during the 19th century stimulated population growth and emigration. Imperial expansion also occurred as industrial powers sought to increase their political power and hinder their competitors' expansion. This entire process was legitimized by racist and nationalist conceptions held by scientists, writers, and politicians, who justified the colonization of other villages based on their perceived inferiority to the white race and the need to civilize them.

sswsss

Classified in Geography

Written at on English with a size of 1.7 KB.

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Today I come to talk about a very important topic, what is pollution. Today many of the products we consume and the industries that produce them generate pollution. We find air pollution in the air we breathe, in our food, in our clothes and cosmetics… Furthermore, plastic has literally flooded our lives. Pollution is not a long-term problem but it is currently affecting each one of us, for example air pollution that causes respiratory diseases, or deforestation that kills our fauna and vegetation.

The accumulated waste in our seas has become tons and tons. All of our beautiful cities, with our beautiful beaches, our incredible market stalls, could disappear. That is why we must reduce waste, nuclear energy, oil ... All this can be achieved... Continue reading "sswsss" »

The Importance of the Skeletal System in the Human Body

Classified in Biology

Written at on English with a size of 881 bytes.

The Skeletal System: The Internal Framework of the Body

The skeletal system is the internal framework (structure) of the body. It is made up of 206 bones and tissue.

Support

Bones hold our body and give us shape. For example, the spinal cord provides support.

Protection

The skeleton protects our vital organs. For instance, the skull protects the brain, and the ribs protect our heart and lungs.

Movement

Bones allow us to move as a whole body or as individual parts.

Blood Production

Certain bones in the skeleton contain red bone marrow, which produces red blood cells, white blood cells, and platelets.

Storage

Our bones can store different minerals, such as calcium.

Endocrine Regulation

Endocrine glands produce hormones, and the skeletal system helps regulate... Continue reading "The Importance of the Skeletal System in the Human Body" »

Understanding Net Worth and Its Importance for Businesses

Classified in Economy

Written at on English with a size of 2.78 KB.

What is Net Worth and Why is it Important for Businesses?

Net worth represents the difference between a person's or corporation's assets and liabilities. It serves as a crucial indicator of a company's financial health, offering a snapshot of its current financial standing.

Understanding Your Net Worth

Knowing your net worth is essential as it helps identify areas of excessive spending. The ability to afford something doesn't necessitate its purchase. To prevent unnecessary debt accumulation, differentiate between needs and wants before making purchases.

Exploring the SEIS Program

The Seed Enterprise Investment Scheme (SEIS) is a UK government program designed to assist startups in raising capital. It aims to stimulate economic growth by promoting... Continue reading "Understanding Net Worth and Its Importance for Businesses" »

English Speaking Practice

Classified in English

Written at on English with a size of 4.21 KB.

Speaking Part 1

1. What is your name?

My name is Keira.

2. Can you spell your last/surname name?

It’s S-a-n-t-e-l-l-a-n.

3. How old are you?

I’m 10 years old.

4. Where are you from?

I’m from Mexico City.

5. Where do you go to school?

I go to Queen Mary School.

6. How do you go to school?

I go to school by car.

7. Do you have any brothers or sisters?

I have one brother.

8. Do you have a pet?

Yes, I have a dog. It’s names are Lili and Frida.

9. What is your favorite subject at school? Why?

It’s Art because it’s fun to use different colors of paint.

10. Which is your least favorite subject at school and why?

I don’t like history because I have to memorize dates and then I forget them. I like geography because I learn more about cultures.

A2 Key Speaking

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Realism in International Relations: A Deep Dive

Classified in Arts and Humanities

Written at on English with a size of 3.59 KB.

Realism in International Relations

Realism is one of the dominant schools of thought in international relations theory, theoretically formalizing the Realpolitik statesmanship of early modern Europe. Although a highly diverse body of thought, it is unified by the belief that world politics is always and necessarily a field of conflict among actors pursuing power. The theories of realism are contrasted by the cooperative ideals of liberalism.

Realists can be divided into three classes based on their view of the essential causes of interstate conflict:

  • Classical realists believe it follows from human nature;
  • Neorealists attribute it to the dynamics of the anarchic state system;
  • Neoclassical realists believe it results from both, in combination with
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The Importance of Patterns in Sociological Perspective

Classified in Psychology and Sociology

Written at on English with a size of 857 bytes.

Importance of Patterns:

1. People within a society relate in patterned ways.

2. A group is more than the sum of the individuals within the group.

3. People within a group behave differently than they would outside the group.

4. Groups encourage their members to behave in similar ways, or patterns, and to value these ways.

Sociological Perspective:

1. Focuses on groups rather than individuals.

2. It focuses on people at a group level.

Sociological Imagination:

1. Ability of individuals to see the relationship between events.

2. Look at our own society as outsiders.

Network Types, MAC Addresses, and OSI Model Explained

Classified in Computers

Written at on English with a size of 2.86 KB.

Network Classification by Device Roles

Networks can be classified based on the roles of the devices within them:

  • Client-Server: This is the most common type. A powerful server provides services to multiple clients and is always available. Example: A web server.
  • Peer-to-Peer: In this model, all computers have equal roles and share resources directly. Example: BitTorrent.

Router Functions in Home Networks

Routers provided by Internet Service Providers (ISPs) often integrate the functions of multiple devices, including:

  • Hub
  • Modem
  • Access Point

MAC Address Translation

The MAC address 08-2E-5F-14-93-A0 in decimal is 8-46-95-20-147-160.

Switches and the OSI Model

Switches operate at Level 2 (Data Link Layer) of the OSI model. Other devices that work at this level... Continue reading "Network Types, MAC Addresses, and OSI Model Explained" »

Semantic Theory: Naturalists vs. Conventionalists

Classified in Arts and Humanities

Written at on English with a size of 3.37 KB.

The Naturalists' View on Meaning

Ancient Greek philosophers who advocated this position viewed naming as a natural relationship between the signs and what these signs signified. They thought that the form of words was thus related to their meaning. This relationship was said to emanate from rigidly fixed inviolable principles on which man had no control.

The existence of a number of onomatopoeic words in natural languages, that is, words whose phonetic form is an imitation of the original sound they refer to such as cuckoo, splash, crush, and hoot in English, backed up the view held by the naturalist school.

The Conventionalists' View on Meaning

Greek philosophers who argued for the conventionalist explanation viewed the relationship of naming... Continue reading "Semantic Theory: Naturalists vs. Conventionalists" »