Category JSS 1 Basic Science Notes (1st, 2nd & 3rd Term)

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…

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…

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 These are …

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.…

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…