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

Energy for working. Energy is a key factor in national development. For instance, electrical energy is needed to do a lot of things. Poor management of the energy resources in a nation might cause it to remain in a state…

Meaning of renewable and non-renewable energy Renewable energy is the energy resources that can be replaced as they are used up. Non-renewable energy is the energy resources that cannot be replenished as they are used up. Examples of renewable sources…

Counselling and Testing In today’s fast-paced and often overwhelming world, young people face various emotional, psychological, and health-related challenges. Whether it’s academic pressure, peer issues, mental health concerns, or questions about physical well-being, it’s essential to know where to go…

HIV means Human Immunodeficiency Virus while AIDS means Acquired Immune Deficiency Syndrome. HIV/AIDS is a deadly disease which has no cure yet. The virus, HIV is the cause of AIDS. This virus attacks the body’s immune defence system and breaks…

Sexually transmitted infections (diseases) are infections that can be spread from one person to another through sexual intercourse with an infected person. Examples, Causative agents and symptoms of Sexually Transmitted Infections (STIs)   EXAMPLES OF STIs CAUSATIVE AGENT TRANSMISSION SYMPTOM…

Effects of air pollution.
(1) It can lead to respiratory diseases (when smoke, soot and dust is inhaled)
(2) Smog can reduce visibility and cause respiratory diseases
(3) High concentration of carbon (ii) oxide can cause brain damage
(4) It can cause cancer

Pollution is the contamination of our environment with dirty, poisonous and dangerous or hazardous substances. It is also defined as the release of waste products or materials into the environment that is harmful to life. These dirty, poisonous and dangerous…

Reproduction is the ability of living things to produce young ones like them. Reproduction is one of the characteristics of living things which is for the continuation of life. There are two types of reproduction. The Male Reproductive System The…

Reproduction is the ability of living organism to produce young ones of their kind. It is necessary for the continuity of life. Types of Reproduction There are two main types of reproduction Asexual Reproduction: This is the type of reproduction…

A drug is a chemical substance which affects the action of the body. Importance of Drug Drug Abuse This is the act of using drugs without the doctor’s advice and prescription. Drug Misuse This refers to the use of drugs…

Nutrition is the process of taking in food to get energy and maintain life. It is also called feeding in living organisms. Food Food is any substance which when eaten is used to maintain life and growth. Importance of Food…

Sanitation Sanitation is the process of keeping places free from dirt which causes infections, diseases and germs. This is done by removing waste products (both solid and liquid) away from the environment. It is also the process of maintaining cleanliness.…

This is the period during which growing boys and girls reach sexual maturity and become capable of reproduction. Usually, puberty starts between ages 8 and 13 in girls and ages 9 and 15 in boys. Pubertal Changes in Boys Pubertal…

Metals are elements that readily form positive ions and have metallic bonds.  Examples are copper, iron, copper, etc. Properties of Metals Non-Metals These are elements that do not have the properties of metals. Examples are sulphur, nitrogen, oxygen, chlorine. Etc.…

Characteristics of Plants and Animals Plants exist in different forms. These are: Animals can be classified as: Differences Between Plants and Animals S/N CHARACTERISTICS PLANTS ANIMALS 1 Movement Passive movement Active movement 2 Reproduction Mostly asexual reproduction Mostly sexual reproduction…

Living things are things that have life in them.  Examples are man, insect, bird, fish, toad, lizard, yam, grass, etc. Living things are classified into two major group i.e. plants and animals. Non-living things are things that have no life…

Matter is anything that has mass and occupies space.  Examples are a stone, sand, water, biro, air etc. All matter is made up of tiny particles called atom. Properties of Matter Classification of Matter Matter can be classified into two…

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                                  …

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…