JSS1 - SS3 Lesson Notes
Lesson Notes, Audio Lessons, Exam Questions
Lesson Notes, Audio Lessons, Exam Questions
Pollution occurs when pollutants contaminate the natural surroundings; which brings about changes that affect our normal lifestyles adversely. Pollution is the introduction of contaminants into the environment that cause harm or discomfort to humans or other living organisms, or that…
Energy is the amount of force or power when applied can move one object from one position to another or Energy defines the capacity of a system to do work. Energy exists in everybody whether they are human beings or…
Energy is the amount of force or power when applied, can move one object from one position to another, or Energy defines the capacity of a system to do work. Energy exists in everybody, whether they are human beings or…
VCT stands for voluntary counseling and testing. VCT is when a person chooses to undergo HIV/AIDS counseling so that they can make an informed decision about whether to be tested for HIV. The government is encouraging all of us to come…
STIs mean sexually transmitted infections. HOW HIV / AIDS CAN BE TRANSMITTED HIV is found in the body fluids (blood, semen, pre-ejaculatory fluids and matured maternal milk). HIV can be transmitted when the fluid body fluid of an infected person…
Sexually Transmitted Infections (STIs), also known as Sexually Transmitted Diseases (STDs) or Venereal Diseases (VD) are diseases that are passed on from one person to another through sexual contact, and sometimes by genital contact – the infection can be passed…
Depression may arise when a teenager is pregnant. The teen may fall into a depression while trying to handle the emotions a pregnancy creates and all of the possibly negative feedback about the pregnancy from friends and family. The fluctuating…
Pregnancy symptoms: Top 11 early signs of pregnancy Wondering if you might be pregnant? Before a missed period or a positive test, your body may start giving you subtle hints. From changes in appetite to fatigue and mood swings, early…
Meaning of Menstruation Menstruation, also known as a period or monthly, is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. The first period usually begins between twelve and fifteen years…
Reproductive System is a term applied to the group of plant or animal organs that are necessary for or that are accessory to the reproductive processes. Reproduction is the process whereby all living organisms produce offspring. Reproduction is one of…
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…
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…
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…
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…
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…
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…
Element An element is a substance which cannot be further divided into simpler substances. Over 100 chemical elements are known. They fall into two main categories, namely: Metals and Non-metals. Metallic elements have their ending with letter M while non-metal…
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…
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…
It is described as a closed circulatory system in that blood is circulated round the body through a system of interconnecting blood vessels. The human circulatory system is also described as double circulation in that blood has to flow twice…