O level Combined Science

Welcome to O level Combined Science — the complete ZIMSEC Forms 3–4 course.

This course is organised into 7 months (28 weeks). Each week has 4 days of lesson notes and a Day 5 quiz. Every month ends with a comprehensive End of Month Test.

Curriculum

35 Sections
147 Lessons
28 Weeks

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Week 1: Laboratory Safety and Apparatus
5
- 1.1
  Week 1 Day 1: Laboratory Safety Rules
  30 Minutes
- 1.2
  Week 1 Day 2: Common Laboratory Apparatus
  30 Minutes
- 1.3
  Week 1 Day 3: Measuring Apparatus and Reading Scales
  30 Minutes
- 1.4
  Week 1 Day 4: Safe Practice and Handling Apparatus
  30 Minutes
- 1.5
  Week 1 Day 5: Week 1 Quiz — Safety & Apparatus
  20 Minutes
Week 2: Cells and Levels of Organization
5
- 2.1
  Week 2 Day 1: Introduction to Cells
  30 Minutes
- 2.2
  Week 2 Day 2: Animal Cell Structure
  30 Minutes
- 2.3
  Week 2 Day 3: Plant Cell Structure
  30 Minutes
- 2.4
  Week 2 Day 4: Specialised Cells and Levels of Organisation
  30 Minutes
- 2.5
  Week 2 Day 5: Week 2 Quiz — Cells & Organisation
  20 Minutes
Week 3: Nutrition — Human Alimentary Canal
5
- 3.1
  Week 3 Day 1: Parts of the Human Alimentary Canal
  30 Minutes
- 3.2
  Week 3 Day 2: Digestion and Enzymes
  30 Minutes
- 3.3
  Week 3 Day 3: Adaptations of the Ileum
  30 Minutes
- 3.4
  Week 3 Day 4: Balanced Diet and Malnutrition
  30 Minutes
- 3.5
  Week 3 Day 5: Week 3 Quiz — Nutrition
  20 Minutes
Week 4: Respiratory System — Breathing Mechanism
5
- 4.1
  Week 4 Day 1: Organs of the Breathing System
  30 Minutes
- 4.2
  Week 4 Day 2: Mechanism of Breathing
  30 Minutes
- 4.3
  Week 4 Day 3: Effect of Exercise on Breathing
  30 Minutes
- 4.4
  Week 4 Day 4: Features of Efficient Gas Exchange Surfaces
  30 Minutes
- 4.5
  Week 4 Day 5: Week 4 Quiz — Respiratory System
  20 Minutes
End of Month 1 Test
1
- 5.1
  End of Month 1 Test — Comprehensive Quiz (Weeks 1–4)
  60 Minutes
Week 5: Transport in Plants
5
- 6.1
  Week 5 Day 1: Water Uptake — Root Hair Cells
  30 Minutes
- 6.2
  Week 5 Day 2: The Pathway of Water through the Root
  30 Minutes
- 6.3
  Week 5 Day 3: Transpiration
  30 Minutes
- 6.4
  Week 5 Day 4: Factors Affecting Transpiration
  30 Minutes
- 6.5
  Week 5 Day 5: Week 5 Quiz — Transport in Plants
  20 Minutes
Week 6: Transport in Animals — Circulatory System
5
- 7.1
  Week 6 Day 1: The Need for a Transport System
  30 Minutes
- 7.2
  Week 6 Day 2: Structure of the Mammalian Heart
  30 Minutes
- 7.3
  Week 6 Day 3: Functioning of the Heart
  30 Minutes
- 7.4
  Week 6 Day 4: Monitoring Heart Activity (ECG, Pulse)
  30 Minutes
- 7.5
  Week 6 Day 5: Week 6 Quiz — Heart & Circulation
  20 Minutes
Week 7: Blood and Blood Vessels
5
- 8.1
  Week 7 Day 1: Arteries, Veins and Capillaries
  30 Minutes
- 8.2
  Week 7 Day 2: Blood Components — Red Blood Cells
  30 Minutes
- 8.3
  Week 7 Day 3: Blood Components — White Blood Cells & Platelets
  30 Minutes
- 8.4
  Week 7 Day 4: Plasma and Functions of Blood
  30 Minutes
- 8.5
  Week 7 Day 5: Week 7 Quiz — Blood & Blood Vessels
  20 Minutes
Week 8: Plant Nutrition & Photosynthesis
5
- 9.1
  Week 8 Day 1: Introduction to Photosynthesis
  30 Minutes
- 9.2
  Week 8 Day 2: Factors Affecting Photosynthesis
  30 Minutes
- 9.3
  Week 8 Day 3: Investigating Light Intensity and CO₂
  30 Minutes
- 9.4
  Week 8 Day 4: Temperature, Chlorophyll and Leaf Structure
  30 Minutes
- 9.5
  Week 8 Day 5: Week 8 Quiz — Photosynthesis
  20 Minutes
End of Month 2 Test
1
- 10.1
  End of Month 2 Test — Comprehensive Quiz (Weeks 5–8)
  60 Minutes
Week 9: Reproduction in Plants
5
- 11.1
  Week 9 Day 1: Flower Structure
  30 Minutes
- 11.2
  Week 9 Day 2: Pollination and Fertilisation
  30 Minutes
- 11.3
  Week 9 Day 3: Seed and Fruit Formation
  30 Minutes
- 11.4
  Week 9 Day 4: Seed Germination and Dispersal
  30 Minutes
- 11.5
  Week 9 Day 5: Week 9 Quiz — Reproduction in Plants
  20 Minutes
Week 10: Reproduction in Humans
5
- 12.1
  Week 10 Day 1: Male Reproductive System
  30 Minutes
- 12.2
  Week 10 Day 2: Female Reproductive System
  30 Minutes
- 12.3
  Week 10 Day 3: Puberty and Sex Cells
  30 Minutes
- 12.4
  Week 10 Day 4: Fertilisation and Implantation
  30 Minutes
- 12.5
  Week 10 Day 5: Week 10 Quiz — Human Reproduction
  20 Minutes
Week 11: Human Development & Puberty
5
- 13.1
  Week 11 Day 1: The Menstrual Cycle
  30 Minutes
- 13.2
  Week 11 Day 2: Pregnancy and Foetal Development
  30 Minutes
- 13.3
  Week 11 Day 3: Birth and Parental Care
  30 Minutes
- 13.4
  Week 11 Day 4: Contraception and Family Planning
  30 Minutes
- 13.5
  Week 11 Day 5: Week 11 Quiz — Development & Puberty
  20 Minutes
Week 12: Health and Diseases
5
- 14.1
  Week 12 Day 1: Pathogens and Transmissible Diseases
  30 Minutes
- 14.2
  Week 12 Day 2: Virus Structure and Body Defences
  30 Minutes
- 14.3
  Week 12 Day 3: Disease Control and Prevention
  30 Minutes
- 14.4
  Week 12 Day 4: Active Immunity and Vaccination
  30 Minutes
- 14.5
  Week 12 Day 5: Week 12 Quiz — Health & Diseases
  20 Minutes
End of Month 3 Test
1
- 15.1
  End of Month 3 Test — Comprehensive Quiz (Weeks 9–12)
  60 Minutes
Week 13: Matter — States and Kinetic Theory
5
- 16.1
  Week 13 Day 1: States of Matter
  30 Minutes
- 16.2
  Week 13 Day 2: Kinetic Particle Theory
  30 Minutes
- 16.3
  Week 13 Day 3: Changes of State
  30 Minutes
- 16.4
  Week 13 Day 4: Diffusion and Brownian Motion
  30 Minutes
- 16.5
  Week 13 Day 5: Week 13 Quiz — States of Matter
  20 Minutes
Week 14: Separation Techniques
5
- 17.1
  Week 14 Day 1: Mixtures and Pure Substances
  30 Minutes
- 17.2
  Week 14 Day 2: Filtration and Crystallisation
  30 Minutes
- 17.3
  Week 14 Day 3: Simple and Fractional Distillation
  30 Minutes
- 17.4
  Week 14 Day 4: Chromatography
  30 Minutes
- 17.5
  Week 14 Day 5: Week 14 Quiz — Separation Techniques
  20 Minutes
Week 15: Atoms, Elements and Compounds
5
- 18.1
  Week 15 Day 1: Atoms and Elements
  30 Minutes
- 18.2
  Week 15 Day 2: Atomic Structure — Protons, Neutrons, Electrons
  30 Minutes
- 18.3
  Week 15 Day 3: Compounds, Molecules and Mixtures
  30 Minutes
- 18.4
  Week 15 Day 4: Chemical Formulae and Equations
  30 Minutes
- 18.5
  Week 15 Day 5: Week 15 Quiz — Atoms & Compounds
  20 Minutes
Week 16: The Periodic Table
5
- 19.1
  Week 16 Day 1: Structure of the Periodic Table
  30 Minutes
- 19.2
  Week 16 Day 2: Group 1 — Alkali Metals
  30 Minutes
- 19.3
  Week 16 Day 3: Group 7 — Halogens
  30 Minutes
- 19.4
  Week 16 Day 4: Group 0 — Noble Gases
  30 Minutes
- 19.5
  Week 16 Day 5: Week 16 Quiz — Periodic Table
  20 Minutes
End of Month 4 Test
1
- 20.1
  End of Month 4 Test — Comprehensive Quiz (Weeks 13–16)
  60 Minutes
Week 17: Acids, Bases and Salts
5
- 21.1
  Week 17 Day 1: Properties of Acids and Bases
  30 Minutes
- 21.2
  Week 17 Day 2: The pH Scale and Indicators
  30 Minutes
- 21.3
  Week 17 Day 3: Reactions of Acids
  30 Minutes
- 21.4
  Week 17 Day 4: Preparation of Salts
  30 Minutes
- 21.5
  Week 17 Day 5: Week 17 Quiz — Acids, Bases & Salts
  20 Minutes
Week 18: Chemical Reactions
5
- 22.1
  Week 18 Day 1: Types of Chemical Reactions
  30 Minutes
- 22.2
  Week 18 Day 2: Rates of Reaction
  30 Minutes
- 22.3
  Week 18 Day 3: Energy Changes in Reactions
  30 Minutes
- 22.4
  Week 18 Day 4: Reversible Reactions and Equilibrium
  30 Minutes
- 22.5
  Week 18 Day 5: Week 18 Quiz — Chemical Reactions
  20 Minutes
Week 19: Measurements and Data Presentation
5
- 23.1
  Week 19 Day 1: Physical Quantities and SI Units
  30 Minutes
- 23.2
  Week 19 Day 2: Prefixes and Unit Conversions
  30 Minutes
- 23.3
  Week 19 Day 3: Density and Mass Measurement
  30 Minutes
- 23.4
  Week 19 Day 4: Data Presentation — Tables, Graphs, Charts
  30 Minutes
- 23.5
  Week 19 Day 5: Week 19 Quiz — Measurement
  20 Minutes
Week 20: Force and Pressure
5
- 24.1
  Week 20 Day 1: Types of Forces
  30 Minutes
- 24.2
  Week 20 Day 2: Effects of Forces
  30 Minutes
- 24.3
  Week 20 Day 3: Moments and Levers
  30 Minutes
- 24.4
  Week 20 Day 4: Pressure in Solids, Liquids and Gases
  30 Minutes
- 24.5
  Week 20 Day 5: Week 20 Quiz — Force & Pressure
  20 Minutes
End of Month 5 Test
1
- 25.1
  End of Month 5 Test — Comprehensive Quiz (Weeks 17–20)
  60 Minutes
Week 21: Energy and Energy Conversions
5
- 26.1
  Week 21 Day 1: Types of Energy
  30 Minutes
- 26.2
  Week 21 Day 2: Energy Conversions and Chains
  30 Minutes
- 26.3
  Week 21 Day 3: The Law of Conservation of Energy
  30 Minutes
- 26.4
  Week 21 Day 4: Work, Energy and Power
  30 Minutes
- 26.5
  Week 21 Day 5: Week 21 Quiz — Energy
  20 Minutes
Week 22: Heat Transfer
5
- 27.1
  Week 22 Day 1: Conduction
  30 Minutes
- 27.2
  Week 22 Day 2: Convection
  30 Minutes
- 27.3
  Week 22 Day 3: Radiation
  30 Minutes
- 27.4
  Week 22 Day 4: Applications of Heat Transfer
  30 Minutes
- 27.5
  Week 22 Day 5: Week 22 Quiz — Heat Transfer
  20 Minutes
Week 23: Magnetism
5
- 28.1
  Week 23 Day 1: Magnets and Magnetic Materials
  30 Minutes
- 28.2
  Week 23 Day 2: Magnetic Fields and Poles
  30 Minutes
- 28.3
  Week 23 Day 3: Electromagnets
  30 Minutes
- 28.4
  Week 23 Day 4: Applications of Magnetism
  30 Minutes
- 28.5
  Week 23 Day 5: Week 23 Quiz — Magnetism
  20 Minutes
Week 24: Electricity
5
- 29.1
  Week 24 Day 1: Electric Circuits and Symbols
  30 Minutes
- 29.2
  Week 24 Day 2: Current, Voltage and Resistance
  30 Minutes
- 29.3
  Week 24 Day 3: Series and Parallel Circuits
  30 Minutes
- 29.4
  Week 24 Day 4: Electrical Power and Safety
  30 Minutes
- 29.5
  Week 24 Day 5: Week 24 Quiz — Electricity
  20 Minutes
End of Month 6 Test
1
- 30.1
  End of Month 6 Test — Comprehensive Quiz (Weeks 21–24)
  60 Minutes
Week 25: Oxidation and Reduction
5
- 31.1
  Week 25 Day 1: Oxidation and Reduction — Definitions
  30 Minutes
- 31.2
  Week 25 Day 2: Rusting and Its Prevention
  30 Minutes
- 31.3
  Week 25 Day 3: Combustion and Fuels
  30 Minutes
- 31.4
  Week 25 Day 4: Redox Reactions in Everyday Life
  30 Minutes
- 31.5
  Week 25 Day 5: Week 25 Quiz — Oxidation & Reduction
  20 Minutes
Week 26: Industrial Processes
5
- 32.1
  Week 26 Day 1: Extraction of Iron
  30 Minutes
- 32.2
  Week 26 Day 2: The Contact Process (Sulphuric Acid)
  30 Minutes
- 32.3
  Week 26 Day 3: Electrolysis and Electroplating
  30 Minutes
- 32.4
  Week 26 Day 4: Production of Soap and Fractional Distillation
  30 Minutes
- 32.5
  Week 26 Day 5: Week 26 Quiz — Industrial Processes
  20 Minutes
Week 27: Organic Chemistry
5
- 33.1
  Week 27 Day 1: Introduction to Organic Chemistry
  30 Minutes
- 33.2
  Week 27 Day 2: Alkanes — Structure and Naming
  30 Minutes
- 33.3
  Week 27 Day 3: Alkenes and Addition Reactions
  30 Minutes
- 33.4
  Week 27 Day 4: Fuels and Biofuels
  30 Minutes
- 33.5
  Week 27 Day 5: Week 27 Quiz — Organic Chemistry
  20 Minutes
Week 28: Respiration & Exam Review
5
- 34.1
  Week 28 Day 1: Aerobic Respiration
  30 Minutes
- 34.2
  Week 28 Day 2: Anaerobic Respiration
  30 Minutes
- 34.3
  Week 28 Day 3: Uses of Energy in Living Organisms
  30 Minutes
- 34.4
  Week 28 Day 4: Exam Review — Combined Science
  30 Minutes
- 34.5
  Week 28 Day 5: Week 28 Quiz — Respiration
  20 Minutes
End of Month 7 Test — Final Combined Science Exam
1
- 35.1
  Final Exam — Comprehensive Test (Weeks 25–28 + Review)
  90 Minutes

Instructor

Tawanda Nyasha Andrew Chizema

367 Students

39 Courses

I am a Mechanical Engineer. Self taught Software and IT Specialist in the field of Business.

$3.00 /month

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147 Lessons

Duration: 28 Weeks

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O level Combined Science

Curriculum

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