Fategbe .A

Basic Science

TEMPORARY AND PERMANENT CHANGES

The developmental changes could be permanent or temporary.permanent changes are irreversible.Examples are the changes that occur during body growth i.e those features associated with the development stages of  child hood,Adolescence and Adulthood are the permanent changes.   Temporary changes may disappear after sometimes.They can be corrected medically or changed by behavior whereas permanent changes remains […]

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Basic Science

Definition of growth and development

Growth is the progressive increase in the size of a child or parts of a child. Development is progressive acquisition of various skills (abilities) such as head support, speaking, learning, expressing the feelings and relating with other people. Growth and development go together but at different rates. Maturity refers to when the body are fully

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Basic Science

MAN AS AN INTELLIGENT ANIMAL

The human brain possesses qualities that have no parallel in the animal world. One consequence is man’s explicit mental capabilities. Man possesses the faculty of speech and his creative communication by means of his vocal system is completely different from those of animals   That’s the longest string of words that Nim Chimpsky, a chimpanzee

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Basic Science

Adaptations

Adaptations are special features that allow a plant or animal to live in a particular place or habitat. The ability of living organisms to adjust themselves to the surroundings is called as adaptation. Adaptations are the changes in structure or behaviour of an organism that will allow the organism to survive in that habitat.  

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Basic Science

DESERTIFICATION

Desertification is the process by which a previously biologically productive land becomes progressively dried till it eventually becomes a desert. Or Desertification is the extension or encroachment of desert into habitable land. The geographical zones near and around  the desert are highly prone to this environmental hazard.Man”s activities have contributed environmental degradation such as exposing

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Basic Science

DEFORESTATION

Deforestation is defined as the clearing of forest wood for farming or purposes without immediate replanting. This act of cutting down trees indiscriminately by the activities of man is encouraged by the following factors; -Bush burning -Building of schools, houses etc. -felling of trees for firewood -Construction of roads and bridges.   Reasons for Deforestation

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Basic Science

FLOODING

Flood is defined as an overflow of water that submerges land which is usually dry. Flooding occurs when a part of the soil or land is submerged under water. Some part of the land are prone to flooding, this is due to the soil structure Types of Flooding Flash floods- This occurs within a very

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Basic Science

BUSH BURNING

Bush burning is the act of setting forest, weed and grasses on fire deliberately either with a purpose or not. Practices That Influence Bush Burning -Some poor agricultural practices such as shift cultivation -Hunting for animals -By using fire to clear land for agricultural purposes -Construction of roads and felling of trees. -Grazing purpose by

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Basic Science

SOIL EROSION

Erosion is the washing away or wearing of the top soil and sub-soil from land either by water or wind. Process of Soil Erosion -Detachment is when the top soil is actually detached from the rest of the soil. -Movement is when the top soil is transported to another area. -Deposition is where the top

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Basic Science

FAMILY TRAITS

A family trait is a genetic likeness that is passed through the parents” genes to their children or offspring. The traits that are being inherited are present in form of genes. Genes are the hereditary unit. The characters or traits that can be passed from the parents to the offspring include the following; I- Skin

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Basic Science

Drug Control Agencies

There are two notable drug controlling agencies which established prevent the influx of fake, adulterated and hard drugs. The two agencies are; i) NAFDAC (National Agency for Food Drug Administration and Control) Functions -The agency make sure that adulterated foods are not sold to the public. -It ensures that proper quality control of manufactured food

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Basic Science

DRUG AND SUBSTANCES ABUSE

A drug is a chemical substance which affects the action of the body. Or a drug is defined as any substance that causes physical and mental changes in the body. If drugs are used under proper medical supervision they can serve the following purposes; i—To save life   ii—To relieve suffering due pain iii-To combat disease

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Basic Science

SATELLITE

MEAINING OF STATELLITE Satellite is a body that orbits or moves round a planet e.g. the moon is a satellite of the earth Thus, the satellites or moons of the planet in our solar system are shown below PLANET                               NO OF SATELLITE Mercury                                   None Venus                                      None Earth                                       1 Mass                                        2 Jupiter                                     12 Saturn                                      9

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Basic Science

THE EARTH IN SPACE

Man has been inquisitive about the sky, the moon and the stars for a very long time. Now, a lot has been known about the component of the universe and other celestial bodies.   THE SOLAR SYSTEM The sun and all the bodies orbiting round it makes up the SOLAR SYSTEM. The planets and their

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Basic Science

GRAVITATION AND WEIGHTLESSNESS

MEANING OF GRAVITATION Gravitation is a force that has effect on the stability of a body. If an object is tossed up the air, it will fall back to the ground because the earth exerts an attraction on it. This attraction is called gravitational attraction.   The gravitational attraction / force between any two object

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Basic Science

SPACE TRAVEL

MEANING OF SPACE TRAVEL The space outside the sun, earth, star is called outer space. Space travel is the travelling to the outer space beyond this earth. The space travellers are called astronaut. The earth is surrounded by a layer of air called atmosphere which can be divided into about 4 regions: Troposphere Stratosphere Lomosphere

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Basic Science

FORCES

A force can be defined as any action that makes or tries to move, stop or alter the speed of a body in a given direction. TYPES OF FORCE There are two types of force namely: Contact force Non-contact   CONTACT FORCE These are  forces which sources are in contact with the body to which

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Basic Science

ENVIRONMENTAL POLLUTION

EFFECTS OF POLLUTION Environment Degradation Environment is the first casualty for increase in pollution weather in air or water. The increase in the amount of CO2 in the atmosphere leads to smog which can restrict sunlight from reaching the earth. Thus, preventing plants in the process of photosynthesis. Gases like Sulfur dioxide and nitrogen oxide

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