Lesson Notes, Audio Lessons, Exam Questions
Lesson Notes, Audio Lessons, Exam Questions
Find complete Basic Science lesson notes for Junior Secondary School students, from JSS1 to JSS3. These notes are carefully crafted to align with the Nigerian school syllabus, making learning easier and more organized.
Each topic is explained simply and engagingly to help students understand key scientific concepts, prepare for examinations, and build a strong foundation for future studies.
Teachers can also use these notes as a classroom resource to improve teaching delivery.
Download and study Basic Science lesson notes for JSS1 to JSS3. Well-structured, syllabus-aligned notes for students and teachers based on the Nigerian curriculum
Radioactivity is the spontaneous disintegration of the nucleus of an atom of an element. Radioactivity involves nucleus reactions. A chemical reaction involves the movement of an element in its nucleus, and the force holding the nucleus becomes weaker. Such an…
A machine is defined as any arrangement that enables work to be done easily. Types of machine There are different types of simple machines ; lever, pulley, wheel and axle, inclined plane, screw and jack and hydraulic press .A machine…
ABORTION: Is defined as the deliberate termination of human pregnancy. It ends the pregnancy by removing the foetus and embryos before it can survive outside the uterus. Types of Abortion Reason For Abortion Consequences of Unsafe Abortion. Ways of Preventing…
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…
Meaning of Energy Energy is defined as the ability or capacity to do work. The unit of energy is Joules (J) Sources of Energy There are two main sources of energy, the natural and the artificial sources of energy. The…
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…
The kinetic theory of matter explains the behavior of matter in terms of the motion of its particles. According to this theory, matter is composed of tiny particles (atoms, molecules, or ions) that are constantly in motion. Changes in states…
Melting When a solid is heated, the particles acquire more kinetic energy and vibrate more vigorously. Eventually, at a certain temperature called the melting point of the solid, the force of the vibrations overcome the binding forces and solid structure…
Kinetic molecular theory is useful in describing the properties of solids, liquids and gases at the molecular level. Kinetic theory of matter assumes that matter is made up of tiny particles such as atoms, molecules and ions that are continually…
Kinetic energy is a form of energy that an object possesses due to its motion. It is defined as the energy an object has because of its mass and velocity. The formula for calculating kinetic energy is: Kinetic Energy Kinetic…
Life Span continuum refers to series of similar events that takes place throughout the length of time a person is likely to live.
Communication Techniques Communication is the process of giving, receiving and understanding messages. It involves exchanging ideas, understanding, listening, expressing oneself, talking and using body language, facial expression and a host of other behaviours. Types of communication: 1.Verbal Communication; This is…
When an object is dropped from above the ground, work is done as the object is pulled to the ground. As the object is falling and work is done, the potential energy of the body is changed to kinetic energy.…
Potential Energy Potential energy is the type of energy possessed by a body due to its position. A stone on the ground does not have energy so long as it is lying on the ground. The stone cannot be seen…