Basic Science

Meaning of Body Image Body image refers to the way a person feels about his or her physical appearance. People have differences in their physical appearances,some of these are in term of: 1.Height 2.Size or shape  of the body 3.Race or Ethnicity and 4.Colour of the skin,eye and hair.   PHYSICAL FEATURES Physical features or […]

Pubertal changes could be physical ,emotional,social and internal.These changes must be well handled In Adolescents. Adolescents often enter puberty with a heightened sense of sexuality accompanied by a great  deal of confusion.At  this stage,they are faced with the challenges of forming an identity,false feelings of independence,uestions about conformity as  well as  confusion about values and

PUBERTY               Puberty is the transitional biological stage between childhood and adulthood. It is the stage when the body matures.Puberty involves changes in primary seual characteristics. It starts when the pituitary gland at the base of the brain produces hormones.Hormones are chemical substances,which control the body’s development and growth.At pub.   Rty,these hormones are secreted to

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

An Ecological relationship is the relationship between organisms in an ecosystem. All organisms in an ecosystem are connected. Each interaction depends on the one before it. Each population interacts with one another in a complex web of relations. Ecological relationships help better describe how they are connected.   There are six ecological relationships in which

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.  

HABITAT OF LIVING THINGS This coral reef in the Phoenix Islands Protected Area is a rich habitat for sea life. Few creatures make the ice shelves of Antarctica their habitat   What is an Habitat? A habitat is an ecological or environmental area that is inhabited by human, a particular species of animal, plant, or

Description-Atmosphere is the region of air above the earth surface. The principal layers of the atmosphere according to temperature of hotness are thermosphere, mesosphere, stratosphere and troposphere. The ozone layer is located in the stratosphere of the atmosphere where it forms a protective layer shielding life on earth from the sun’s harmful ultra-violet radiation. The

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

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

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

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

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

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

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

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

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

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

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

CALCULATION OF WORK DONE AGAINST GRAVITY Suppose you lift an object of mass 1kg from the ground to a height of 1m, the work done in lifting the abject is calculated by using the formula Mgh Mgh = 1 x 1 x 9.8 joules (g = 9.8m 152) joule is the unit of work.