Chemistry Secondary Form 1

Longhorn Secondary Chemistry Series makes learning Chemistry easier and enjoyable by: 
• presenting the contents in well and logically organised topics which facilitate sequential transition from one concept to the next. 
• presenting Chemistry as a practical subject where learning and development of skills and knowledge is mostly by discovery; way of experimental investigations. 
• emphasising the use of the International Union of Pure and Applied chemistry (IUPAC) system of nomenclature while still retaining some of the commonly used nomenclature for the purpose of guiding in understanding. 
• providing activities, exercises and projects in every topic which help in arriving at the desired logical conclusions. 
• providing well guided experiments with apparatus carefully suggested for each activity. 
• giving chances for self testing through revision exercises and self check tests.
• numerous and appropriate illustration of apparatus and experiment set ups.

1. Introduction to chemistry

Lead	Chapter
1.1.	Introduction to chemistry Free chapter!
1.2.	Chemistry in society
1.3.	The chemistry laboratory
1.4.	End of unit

2. Separation of mixtures

Lead	Chapter
2.1.	Types of mixtures
2.2.	Separating an insoluble solid from a liquid
2.3.	Separating immiscible liquids
2.4.	Separating soluble substances from liquids
2.5.	Sublimation
2.6.	Chromatography
2.7.	Solvent extraction
2.8.	Crystallisation
2.9.	Pure substances
2.10.	End of unit

3. Nature of matter and kinetic theory

Lead	Chapter
3.1.	The nature of matter
3.2.	The effect of heat on substances
3.3.	The kinetic theory of matter
3.4.	End of unit

4. Temporary and permanent changes

Lead	Chapter
4.1.	Temporary (physical) changes
4.2.	Permanent (chemical) changes
4.3.	End of unit

5. Constituents of matter

Lead	Chapter
5.1.	Elements, atoms, molecules, compounds, and mixtures
5.2.	Chemical symbols
5.3.	Simple word equations
5.4.	End of unit

6. Acids, bases, and indicators

Lead	Chapter
6.1.	Acids and bases
6.2.	Indicators and the pH scale
6.3.	Properties of acids and bases
6.4.	End of unit

7. Air and combustion

Lead	Chapter
7.1.	The composition of air
7.2.	Determining the quantity of oxygen
7.3.	Burning substances in the air
7.4.	Atmospheric pollution
7.5.	Rusting
7.6.	Methods of preventing rusting
7.7.	Preparing, drying, and collecting gases in the laboratory
7.8.	Collecting oxygen in a laboratory
7.9.	The reactions of non-metals and metals with oxygen
7.10.	Properties of oxygen
7.11.	Industrial preparation of oxygen
7.12.	The reactivity series
7.13.	The extraction of metals from their ores
7.14.	End of unit

8. Water and hydrogen

Lead	Chapter
8.1.	Water
8.2.	The water cycle
8.3.	Water pollution
8.4.	The reactions of metals with water
8.5.	Laboratory preparation and the properties of hydrogen
8.6.	Oxidation and reduction
8.7.	Uses of hydrogen
8.8.	End of unit

9. Extras

Lead	Chapter
9.1.	Definitions
9.2.	Appendix I
9.3.	Appendix II