SOURCES AND IMPORTANCE OF HISTORY.

SOURCES AND IMPORTANCE OF HISTORY.Meaning of HistoryHistory is the study of man and his activities in different timesThese activities enable man to obtain his needs.Man’s basic needs are food,cloths and shelterIMPORTANCE OF STUDYING HISTORY1. History enables us to understand how man has been working on his environment2. History helps us to understand the past and the present,that help us to predict the future.3. It helps us to understand the relationship between people in different periods4. It helps us to understand technological transformation in human life eg. From sto

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INTRODUCTION TO CHEMISTRY

INTRODUCTION TO CHEMISTRY What is chemistry?Chemistry is the branch of science which deals with composition, decomposition and properties of matter.OrIt is a branch of science which deals with composition, properties and changes of matter.Note; in chemistry we study how different substances combine with other substances to form new substances.- People who study chemistry are called chemists.- Material objects made by application of chemistry, are fertilizers, pesticides, detergents etc.What is importance of chemistry?Chemistry is important for our lives and development du

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INTRODUCTION TO BIOLOGY

INTRODUCTION TO BIOLOGY What is biology?Biology is study of living things or organism.Living things include bacteria, fungi, animals, pants etc.Biology is derived/comes from two Greek words; Bios – means “Life” Logos – means “study” The people who study biology are called Biologist. Very small organisms are microorganism. The simplest living things are made up of one cell these are called unicellular organism e.g. bacteria, protozoan and amoeba (also called microscope organism). Large organisms are made up of many cellsT

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INTRODUCTION TO PHYSICS

INTRODUCTION TO PHYSICS What is physics?Physics is the branch of science which deals with matter in relation to energy.Matter is anything which occupies space and it has weight.Energy is the capacity or ability to do work.What is science?Science is the systematic study of nature.A person who studies physics is called a physicist.Branches of physicsPhysics is divided into various branches such as;i. Mechanics – this is the study of motion of bodies in the frame of reference.ii. Optics – this is the study of physical properties of light.iii. Atomic physics – this is the study of atoms specif

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