SS1 Chemistry – Writing and Balancing Chemical Equations

CHEMICAL EQUATIONS Chemical equations is the representation of chemical reaction in terms of the symbols and formulas of the elements and compounds involved. The substances that participate in the reaction,

SS1 Biology – Living Things and Non-Living Things

Living things are those objects that have life e.g., plants and animals. Non-living things are those objects without life or lifeless objects.           CHARACTERISTICS OF LIVING THINGS MOVEMENT: is defined

SS1 Chemistry – Cracking and Reforming

CONTENTS (iii) Cracking of petroleum (thermal and catalytic) (iv) Antiknock and Octane rating   CRACKING: Cracking is the process use in breaking down large hydrocarbon molecules into two or more