Basic Science

Basic Science

CHEMICAL SYMBOLS AND FORMULAE

SYMBOL SOFELEMENT An element is a substance which consists of only one kind of matter Over 100 elements are known, these elements are usually represented by symbols instead of writing their names in full. The abbreviation for each element is called Symbol for that element. The brief name of that element it represents also one […]

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Basic Science

THE CIRCULATORY SYSTEM

Blood Components and Functions Blood is a liquid connective tissue, which is maintained in constant circulation round the body. In certain organisms, blood flows within a closed system of inter connecting vessels while the reverse holds in other organisms. The human blood is of PH 7.4 and comprises four components: Plasma [liquid part of blood]

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Basic Science

DIGESTIVE SYSTEM

PARTS OF THE DIGESTIVE SYSTEM The digestive system consists of the alimentary canal, which is a long tube from the mouth, attached to various organs and ends at the anus. The alimentary canal is a long tube through which food substances pass, become digested (broken down), partly absorbed and the rest passed out. The alimentary

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Basic Science

SIMPLE MACHINE

Definition of Simple Machine A machine is a tool or device that makes work easier. It is defined as a tool which uses force applied (effort) at one point to overcome another resisting force (effort) at another point. Examples of machine include: a plier, the human arm, a gear, a pulley etc.   Types of

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Basic Science

SIMPLE CHEMICAL EQUATIONS

If the law of conservation of matter is to be kept, it means that there must be the same number of atoms in each half of the equation. There must be the same number of atoms in reactants and in the products.   The law of conservation of matter states that matter is neither created

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Basic Science

ABORTION

Abortion is the deliberate termination of a human pregnancy, most often performed during the first 28 weeks. It is the ending of pregnancy by removing a foetus or embryo before it can survive outside the uterus. An abortion that occurs spontaneously is also known as a miscarriage. An abortion may be caused purposely and is

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Basic Science

RADIOACTIVITY – MEANING, USES, TYPES, EFFECTS, DANGER & PROPERTIES

Meaning of Radioactivity Radioactivity is the spontaneous disintegration or breaking down of the nucleus of an atom which makes it give out or emit radiation. Any element that disintegrates spontaneously and release rays us called a radioactive element   Discovery of Radioactivity Radioactivity was discovered by a French physicist called Henri Becquerel in 1896. He

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Basic Science

TEENAGE PREGNANCY

Teenage pregnancy refers to pregnancy in a girl between the ages of 10-19. Teenage pregnancy is usually unintended and unwanted. The fact that you are at pubertal age and can get pregnant physically does not mean that you are really mature to be pregnant socially, emotionally, educationally even financially. Teenage pregnancy can be dangerous for

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Basic Science

SKILL ACQUISITIONS

Meaning of Skill Acquisition A skill is a special ability acquired through training in order to do something in a better way. Skill is also defined as the ability to bring about some end result with maximum certainty an minimum outlay of time and energy. There is a different between talent and skill. Skill is

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