Lesson Notes, Audio Lessons, Exam Questions
Lesson Notes, Audio Lessons, Exam Questions
See our detailed chemistry lesson notes for SS 1, SS 2, and SS 3 students, designed to align with the WAEC and NECO syllabus. These lessons cover all major chemistry topics, helping students grasp key concepts and prepare effectively for their exams.
Whether you’re revising, learning new topics, or need quick explanations, these notes serve as a valuable resource for mastering chemistry.
Access free SS 1 to SS 3 chemistry lesson notes aligned with WAEC & NECO syllabus. Learn important chemistry concepts and prepare for exams.
The following example of iron, sulphur and iron sulphide will make us understand the difference between mixtures and compounds. Properties of Iron and Sulphur The following experiment shows the difference in properties between the elements iron and sulphur. Preparation of…
Atoms, Molecules, Elements and Compounds The Atom An atom is the smallest particle of a substance which can have its own characteristic properties. Atoms are built up of even more fundamental sub-atomic particles. These are electrons, protons and neutrons. The protons…
The ability to conduct electricity is the major simple distinction between elements that are metals and non-metals. Electrical Conductors A conductor is a material that conducts electricity but is not chemically changed in the process. They carry an electric current…
Pure Substance Pure means that only one substance is present in the material and can be a pure element or compound. A simple physical test for purity, and properties that can help identify a substance, is to measure the boiling…
All metals (copper, iron, lead, magnesium etc) and graphite, a non-metal. Most non-metals (sulphur, iodine, charcoal etc.) Most solid compounds (All gases are non-conductors) Liquids are classified in three groups as regards their conductivity of electricity: In summary, the following…
All elements are represented by a chemical symbol. It is either a single capital letter, or a capital letter followed by a small letter. Examples: Ca = calcium Cu = copper C = carbon N = nitrogen Combinations of symbols…
Matter is: These are in constant motion attracting one another with inter-particle forces (or cohesive) 1. Is a solid, liquid or gas depending on interparticle forces of attraction and spaces between particles. Matter has many properties. It can have physicaL…
Matter Matter can be classified as either a mixture or a pure substance. Mixtures contain at least two substances. If you can see the different parts of the mixture it is called a mixture.E.g. Soil and concrete Properties of mixtures…
Which apparatus? You wouldn’t dream of trying a chicken using a spoon, or of drying your hair in over a stove! In everyday life, we need to use the right tools for the job we are doing. The same is…
The scientific method is a set of ideas or a procedure that scientists use to investigate things they want to understand. By using the method, you can be sure you’re carrying out your project correctly. The scientific method allows you…
Safety Rules and Regulations Your school science laboratory is set up so that you can perform science experiments in safety provided that you follow the proper procedures and safety precautions listed below. Your teacher will give you specific information about…
Welcome to Chemistry, the Science concerned with the study of matter. In simplest terms, chemistry is the science of matter. Anything that can be touched, tasted, smelled, seen or felt is made of chemicals. Different thing feel, taste, smell and…