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Academic Articles

Time: Simple Pendulum and Ticker-Tape Timer - Physics
Concept of Time and Ways of Measuring Time - Physics
Concept of Direction: Scalars and Vectors - Physics
Position, Distance and Displacement - Physics
Fundamental, Derived and Supplementary Quantities and Units with Dimensions - Physics
Measurement of Basic Quantities and Importance of Measurement in Physics - Physics
Introduction to Physics: Definition, Branches, Importance and Scholars of Physics - Physics
Chemistry Scheme of Work, SS1 Third Term - Chemistry
Chemical Industries: Petrochemicals, Biodegradable, Non-biodegradable Wastes and Pollutants - Chemistry
Chemical Industries: Types, Advantages, Disadvantages and Factors affecting Chemical Industries - Chemistry
Hydrocarbons: Fractional Distillation of Crude oil and Uses of its Fractions - Chemistry
Hydrocarbons: Sources, Classification and Test for Saturated and Unsaturated Hydrocarbons - Chemistry
Trioxocarbonates: Preparation, Physical and Chemical Properties, Tests and Uses of Trioxocarbonates - Chemistry
Carbon and its Compounds: Oxides of Carbon, Carbon(IV) oxide - Chemistry
Carbon and its Compounds: Oxides of Carbon - Chemistry
Amorphous Allotropes of Carbon - Chemistry
Carbon: Structure and Allotropes of Carbon - Chemistry
Salts in Chemistry: Types, Properties, and Uses of Salts - Chemistry
Salts in Chemistry, their Classifications, Solubility, Preparations and Colors - Chemistry
pH Indicators, Types of Indicators and Importance of pH and pOH - Chemistry
Relative Acidity and Alkalinity (pH Scale), and Calculations on pH - Chemistry
Bases and Alkalis: Definitions, Classification, Physical and Chemical Properties - Chemistry
Bases: Preparation of Bases and Alkalis, Test and Uses - Chemistry
Physical and Chemical Properties of Acids, Preparation, Test and Uses of Acids. - Chemistry
Acid: Definition, Basicity, and Types of Acid - Chemistry
Classifications of Drugs, Sources of Drugs and Drug Abuse - Basic Science
Teeth, Structure of the Tooth, Dentition and Dental Care - Basic Science
Balanced Diet, Classes of Food and their Importance - Basic Science
Classes of Food, their Composition and Functions - Basic Science
Nutrition: Types and Class of Food - Basic Science
Cleanliness of parts of the body - Basic Science
Family Health and Personal Cleanliness - Basic Science
Behaviors and Feelings during Adolescence - Basic Science
Pubertal changes in Boys and Girls - Basic Science
Classification and Uses of Rubber - Basic Science
Characteristics, Classification and Uses of Plastics - Basic Science
Cement: Composition, Types and Uses of Cement - Basic Science
Types, Properties and Uses of Ceramics - Basic Science
Properties and Uses of Nonmetals - Basic Science
Safety Devices: Examples and Uses of Safety Devices - Basic Science
Accident Prevention Techniques and Safety Rules - Basic Science
Safety Precautions for Pedestrians, Cyclists and Motorists - Basic Science
Technology: Benefits of Technology - Basic Science
Alloys: Types, Composition and Uses of Alloys - Basic Science
Ferrous and Non-Ferrous Metals - Basic Science
Metals and their Characteristics - Basic Science
Cell Organelles and Differences between Plant and Animal Cell - Basic Science
Importance of Animals and Plants to Humans - Basic Science
Characteristics of Living Things - Basic Science
Classification of Plants: Differences between Plants and Animals - Basic Science
Living Things: Animals - Basic Science
Change of State of Matter - Basic Science
States of Matter - Basic Science
Matter: Classification of Matter - Basic Science
Basic Science Scheme of Work for JSS1, First Term - Basic Science
PVS Examination for JSS1 First Term - Home Economics
English Test for JSS1, First Term - English
Business Studies Test For JSS1 First Term - Business Studies
Linear Equation in Mathematics - Mathematics
Word Problems leading to Algebraic Expression - Mathematics
BODMAS in Algebra - Mathematics
Multiplication and Division in Algebra - Mathematics
Addition and Subtraction in Algebra - Mathematics
Multiplication of Number Bases - Mathematics
Subtraction of Number Bases - Mathematics

In chemistry, hydrocarbons can be classified as either aliphatic or aromatic. Recently, both classifications of hydrocarbon were based on their structure rather than their origin.

Aliphatic hydrocarbons are put into three main groups according to the types of bonds they possess. These are:

  1. Alkanes

  2. Alkenes

  3. Alkynes

They are shown in the image below:

Alkanes, Alkenes and Alkynes - Len Academy

It's important to note the followings:

  • Alkanes have single bonds (only) in their structures.

  • Alkenes always have a carbon-carbon double bond present in their structure.

  • Alkynes always have a carbon-carbon triple bond present in their structure.

 

Aromatic hydrocarbons are classified into:

  • Arenes: They contain benzene ring as a structural unit. Below is the structure of a benzene ring.

Benzene Ring - Len Academy

 

  • Nonbenzenoid aromatic hydrocarbons: They possess special stability but lack a benzene ring as a structural unit.

Chemistry

Organic chemistry is the study of carbon and it's compounds.

Carbon is the focus of organic chemistry because it has a wide chemical diversity in the sense that it can combine with other carbon atoms to form a long chain of carbon molecule. This ability and process whereby carbon can form a long chain of itself is called catenation.

Please read the introduction to organic chemistry here

Chemistry

Marketing is a broad field of study. Below are branches or divisions of marketing:

  • Advertising

  • Search Engine Optimization (SEO)

  • Merchandising

  • Branding

  • Promotions

  • Copywriting

  • Social Media Optimization (SMO)

  • Event planning

  • Customer Relationship Management (CRM)

  • Graphic Design

  • Internet Marketing

Commerce

Marketing is defined as any activity or process aimed at getting people interested in a company’s product or service.

The processes utilized in marketing can take place via posters, public relations campaigns, handbills, social media, radio and television, buses, walls along the streets, the internet or just anywhere.

Below are some of the branches of marketing:

  • Advertising

  • Search Engine Optimization (SEO)

  • Merchandising

  • Branding

  • Promotions

  • Copywriting

  • Social Media Optimization (SMO)

  • Event planning

  • Customer Relationship Management (CRM)

  • Graphic Design

  • Internet Marketing

Please read more on marketing here

Commerce

Waste Management can be defined as the process of collecting, processing, recycling and controlling any material considered as waste.

Improperly disposed waste litters on road sides, in land fills, gutters and ditches. They are generally bad for the following reasons:

Basic Science

Wastes can be classified into various types. These are:

  • Biodegradable waste

  • Non-Biodegradable waste

  • Refuse

  • Sewage

  • Recyclable waste

  • Electronic waste

  • Green waste

  • Biomedical waste

  • Metabolic waste

  • Radioactive waste

  • Chemical waste

  • Animal product waste

Please read the explanations on the classification of wastes here

Basic Science

The African Star Apple is a seasonal fruit that grows abundantly in Nigeria and other West African Countries. It's fondly called African Cherry, Agbalumo or Udara in some parts of Nigeria.

African Star Apple, Cherry, Agbalumo, Udara - Len Academy

Below are some benefits of the African Star Apple:

  • It contains high amount of vitamin C

  • It contains a high amount of calcium

  • It contains high amount of potassium

  • It is a powerful antioxidant

  • It aids in weight reduction

  • It contains a high amount of iron

  • Its leaves, fruits and seeds are medicinal

  • It aids digestion and prevents vomiting

Please read more on the african star apple here

Basic Science

The organs of government (also referred to as arms of government or branches of government) are:

  1. Executive

  2. Legislature

  3. Judiciary

These three arms of government serves as a separation of power.

Separation of Power implies that they carry out their distinct (separate) functions and responsibilities in accordance to the nation's constitution.

The president (who is number one citizen of a country and the Commander-in-Chief of the Armed Forces) is the head of the executive arm of government. It is the responsibility of the executive to enforce or execute the law.

 

The legislature is a group of elected persons who are required to make law.

In Nigeria, the legislature consist of the bicameral national assembly which are:

  1. The upper house or chamber (Senate)

  2. The lower house or chamber (House of Representative)

 

The judiciary is an independent arm of government whose power is enforced in the courts.

Like the executive and legislature, they function under the guidance of the constitution.

Please read more on the organs of government here

Government

Below are some functions of the executive arm of government:

  1. They ensure the security of the citizens in a country.

  2. The executive cannot pass laws into the constitution. Instead, they can forward bills to the legislature (or parliament) which will deliberate upon it. (Think of 'bill' as a proposal to be made into law; which will be submitted to the parliament in the form of a draft act).

  3. It is the president's responsibility to provide quality healthcare system, education, good roads (transport system), power, labour and finance through his ministers. For instance, the minister of agriculture oversees the affairs of agriculture in a nation. The ministers may also be accountable to the national assembly with regards to how they go about their ministries.

  4. They bring about maintenance of law and order in a country through the National Security Agencies (NSA) like the police, army, navy and air force.

  5. They prepare and execute the nation’s budget.

  6. The president approves the law into the constitution.

Plesse read more on the functions of executive, legislative and judiciary arms of government here

Government

The earth is governed by the force of gravity and that’s why everything present on it (humans, plants, animals and even air) is always drawn towards it. You will actually need some form of force greater than gravity in order to pull yourself away from the earth.

As an instance, the earth as we know is spherical in shape and held in space. Also, all humans live on a constantly rotating earth and not inside the earth. Since we live on a spherical earth held in space, how come humans are yet to fall off the constantly rotating earth?

Well, the answer is gravity. Even if we attempt to jump off the earth into space, the force of gravity present on earth will still pull us down. In fact, in order to leave the earth; there has to be a force stronger that gravity; which must be applied to whatever is attempting to leave the earth. For this reason:

Whenever one jumps, a certain amount of force is needed to be applied by that person. However, gravity still return the person back to earth because the applied force had been exhausted.

Please read more on the concept of gravity here.

Physics

The larger the size of an object, the greater it’s force of gravity. Gravity is therefore affected by the size and closeness of objects.

Since the earth is larger than the moon, it will have a greater gravitational force than the moon. We will be more attracted on the earth than we would on the moon if we were astronauts on the moon. This implies that we will weigh differently on both places. For this reason, our weight will also vary on the various planets (because they are of different sizes). This is shown in the diagram below:

Weights on planets - Len Academy

Weight depends on the degree at which the gravity on earth or moon or another planet pulls an object while the Mass of any object or body will always remain the same (constant) since it’s the amount or quantity of matter in the body.

Please read on mass versus weight here

Physics

No one is above the constitution, even the president or prime minister.

  • The constitution is the supreme law in a country, nation or state.

  • The constitution specifies how the nation or state should be governed.

  • The constitution gives power to the different organs of government; (that is,  the executive, judiciary and legislature).

  • The constitution consists of all the fundamental human rights of the people.

Juxtaposing the above points, below is a definition for the term constitution:

Constitution is a supreme law that specifies the government of a nation, the distribution of powers to the different organs of government within that nation and the fundamental rights of all her citizens.

Please read more on the constitution here

Government

Below are some qualities or characteristics of a constitution:

  • It is neither too rigid nor too flexible.

  • It accounts for the rule of law, de-centralization of power, an independent Judiciary system and processes of election transparency.

  • It accounts for the fundament human rights of the people.

  • It allocates power to the different arms of government.

  • It must uphold the people’s sovereignty.

  • It is written systematically.

You can read on the types of constitution here.

Government

A Black market is said to take place when there is illegal buying and selling of goods and services.

Black markets usually take place outside the government's rader and without government's knowledge so as to avoid tax or any other government regulations.

Black market presents the avenue for government prohibited goods like hard drugs, war weapons and firearms to be bought by criminals.

A black market can also occur on the web for cyber criminals or those who are involved in computer hacking. To achieve their malicious aim, these individuals will go into the dark web and purchase or rent their respective hacking tools for a fee. Normally, payments are made in crypto currencies.

However, a black market isn't generally considered as bad. Infact, it has its advantages and disadvantages.

Please read more on black market here

Economics

Below are some advantages of black market:

  • Goods and services are sold at a cheaper price.

  • It helps some people make plenty of money.

  • The illegal sales of human organs, for example, the sale of human kidneys have aided in saving some lives.

  • Some people actually depend on black market for their daily bread.

  • Some of the proceeds from black market may be utilized towards the economic growth of a nation. For instance, schools and hospitals had been built with money made from black market.

Economics

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Amazing facts for Students

Statue of Unity - Len Academy

The Statue of Unity in Gujarat, India, is the tallest statue in the world. It stands at 182 meters (579 feet)

According to research, the problem isn't the amount of food produced; the actual problem is the distribution of these foods. In this regard, we actually produce enough food to feed everyone on earth, but their distribution remains an underlying problem

 

1,000 computers are used to retrieve the answers to your Google search (query) in 0.2 seconds

Malala Yousafzai is a Pakistani education activist, and she is the youngest person to receive the Nobel Peace Prize award at age 17 in 2014, for her work as a child rights activist and champion of girls’ right to education

Russia is home to the largest area of forest in our world with a land mass of 815 million hectares

Salvator Mundi - Len Academy

Salvator Mundi by Leonardo da Vinci is the most expensive painting in the world. It is valued at 450.3 Million Dollars.

This painting depict Jesus Christ with his right hand raised in blessing, and his left hand holding an orb

According to scientific research, if the first tear drop comes from the right eye, it’s tears of joy. If it comes from the left eye, then it is as a result of pain

Marie Curie was the first person ever to win two Nobel prizes. She won her first Nobel price for physics in 1903, and the second for chemistry in 1911 for her work on radioactivity.

2.7 Billion Dollars was realized from the movie - Avengers: Endgame. This makes it the top-grossing film of all time

Sulawasi pigs - Len Academy

The world’s oldest known work of art was discovered by scientists in 2019 on an Indonesian island named Sulawesi. This work of art was created 44,000 years ago, and it shows paintings of three Sulawesi pigs

The shortest war ever lasted for just 38 minutes. This is the Anglo-Zanzibar War in 1896

The first hand-held mobile phone call was made in New York City on April 3rd, 1973

Lake Baikal - Len Academy

Lake Baikal is the deepest freshwater lake in the world. It is located in Siberia, and has a depth of 5,315 feet (1,620 meters)

River Nile is the world's longest river, reaching a length of 6,853km. It runs through the borders of 11 African countries. These are Egypt, Sudan, South Sudan, Ethiopia, Uganda, Democratic Republic of the Congo, Kenya, Tanzania, Rwanda, Burundi and Eritrea

The deepest place on Earth is the Mariana Trench in the Pacific Ocean. It has a dept of 11,034 meters (or 36,201 feet)

68% of households in New Zealand have a pet, and this is more than any other nation or country in the world

Utrecht - Len Academy

According to the Global Bicycle Index, Utrecht in Netherlands is the most bike-friendly city in the world

According to the Population Reference Bureau, the number of people alive today represents about 7% of the total number of humans who have ever lived.

Japan has recorded the most earthquakes and is thereby considered as the world's most earthquake-prone country

174 world leaders signed the Paris Agreement on Earth Day in 2016 at the United Nations (UN) headquarters in New York. This agreement presents the largest number of countries ever to come together to sign anything on a single day. The agreement aims to combat climate change, accelerate and intensify the actions and investments needed to strengthen the global climate effort

Dentistry is the oldest profession in the world. This is considered true because a research conducted by the University of Bologna, Italy on a 14,000-year-old skull found that one rotten tooth in the jaw had been deliberately scoured and scraped with a dental tool

Giant Squid - Len Academy

Giant squid lives deep in the ocean and they have the largest eyes in the world

Scrunched and strengthed are the longest one-syllable words in the English language

The hottest temperature ever recorded occurred in Furnace Creek Ranch, Death Valley, California, USA, at 56.7oC or (134oF) on July 10, 1913

The planets Jupiter, Saturn, Uranus and Neptune have no solid surfaces, but are rather made up of gases. For this reason, humans can never stand on them

Burg Khalifa - Len Academy

Burg Khalifa is the tallest building in the world (as at 2023). It is situated in Dubai and stands at over 2,700 feet

The longest word in English language with only one vowel is 'strengths'

United States of America is comprised of fifty states and Washington D.C.

The letter 'q' is not present in any of the American states

Scientific research has it that the human nose can distinguish more than a trillion different odors

The movements of the fingers are controlled by muscles of the palms and forehands

Tiger fur and skin - Len Academy

Tigers have striped fur. So also is their skin

Platypus - Len Academy

Platypus (sometimes referred to as the duck-billed platypus) is an egg-laying, semiaquatic mammal found in eastern Australia. It has no stomach and as such, its food goes from the mouth through the esophagus and directly to their intestines.

Red-Billed Quelea - Len Academy

The most common wild bird in the world is native to Africa, and it's the red-billed quelea with a population estimated to be around 1.5 billion

The logo for gmail was designed the night before it was launched

Coca Cola owns all the domain names (website names) that can be read as ahh. They include: ahh.com, ahhh.com, ahhhh.com, ahhhhh.com, ahhhhhh.com and so on..., all the way up to 62 'h's!

Yahoo is an acronym for: 'Yet Another Hierarchical Officious Oracle'

Elephant on cumulus cloud - Len Academy

A medium-sized cumulus cloud has a weight of about 80 adult elephants.

You can think of cumulus cloud as a detached, individual, cauliflower-shaped cloud often seen in fair weather conditions

The word pangram refers to a sentence that contains all 26 letters of the alphabet. Below is an example of a pangram:

The quick brown fox jumps over the lazy dog

The word Paraskevidekatriaphobia means the fear of Friday the 13th, while Triskaidekaphobia means an extreme fear of the number 13

Angry and Hungry are the only two English words that currently ends in '-gry'