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

Energy is used up when work is done. The energy stored up in our muscular system is made available when we are to do work. The stored-up energy (potential energy) is converted to kinetic energy as work is being done. MEANING OF WORK, ENERGY AND POWER Work Work is done whenever a force is applied […]

The concepts of work, energy, and power are fundamental in physics and are closely related to each other. Let’s explore each concept individually: 1. Work In physics, work is defined as the transfer of energy that occurs when a force is applied to an object, and the object is displaced in the direction of the

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 doing any work. However, if a stone is on a table and it is placed

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. In principle, the quantity of potential energy stored in a body is always equal to

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 one of the most common ways of c communication which involves sending or receiving information

Life Span continuum refers to series of similar events that takes place throughout the length of time a person is likely to live.

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 Energy (KE) = 0.5 * mass * velocity^2 where: – KE is the kinetic energy

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 moving and therefore possess kinetic energy. The more heat you give these particles, the faster

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 collapses. The particles are no longer in fixed positions, but free to move. At this

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 of matter, such as solid to liquid or liquid to gas, can be explained using

PUBERTY               Puberty is the transitional biological stage between childhood and adulthood. It is the stage when the body matures.Puberty involves changes in primary seual characteristics. It starts when the pituitary gland at the base of the brain produces hormones.Hormones are chemical substances,which control the body’s development and growth.At pub.   Rty,these hormones are secreted to

Meaning of Body Image Body image refers to the way a person feels about his or her physical appearance. People have differences in their physical appearances,some of these are in term of: 1.Height 2.Size or shape  of the body 3.Race or Ethnicity and 4.Colour of the skin,eye and hair.   PHYSICAL FEATURES Physical features or

Adaptations are special features that allow a plant or animal to live in a particular place or habitat. The ability of living organisms to adjust themselves to the surroundings is called as adaptation. Adaptations are the changes in structure or behaviour of an organism that will allow the organism to survive in that habitat.  

Pubertal changes could be physical ,emotional,social and internal.These changes must be well handled In Adolescents. Adolescents often enter puberty with a heightened sense of sexuality accompanied by a great  deal of confusion.At  this stage,they are faced with the challenges of forming an identity,false feelings of independence,uestions about conformity as  well as  confusion about values and

HABITAT OF LIVING THINGS This coral reef in the Phoenix Islands Protected Area is a rich habitat for sea life. Few creatures make the ice shelves of Antarctica their habitat   What is an Habitat? A habitat is an ecological or environmental area that is inhabited by human, a particular species of animal, plant, or

An Ecological relationship is the relationship between organisms in an ecosystem. All organisms in an ecosystem are connected. Each interaction depends on the one before it. Each population interacts with one another in a complex web of relations. Ecological relationships help better describe how they are connected.   There are six ecological relationships in which

The human brain possesses qualities that have no parallel in the animal world. One consequence is man’s explicit mental capabilities. Man possesses the faculty of speech and his creative communication by means of his vocal system is completely different from those of animals   That’s the longest string of words that Nim Chimpsky, a chimpanzee