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ZIMSEC · O Level · Syllabus 4003

Combined Science

14 topics14 with notes5 past papers

Form 4Writing O Level finals this year?Revision mode: every Combined Science past paper by year, with marking schemes, and a checklist of the whole syllabus.
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Form 1 2 topics

  1. Cells and living organisms All living things are made of cells. Living things carry out seven life processes: movement, respiration, sensitivity, growth, reproduction, excretion and nutrition (MRS GREN). Notes 1 PDF
  2. Nutrition in plants and animals Nutrition is how living things obtain food for energy, growth and repair. Notes 1 PDF

Form 2 1 topics

  1. Transport and respiration The heart pumps blood around the body through blood vessels. Notes 1 PDF

Form 3 1 topics

  1. Reproduction, growth and health Reproduction in flowering plants The stamen (anther and filament) makes pollen, the male gamete.The carpel (stigma, style and… Notes 1 PDF

Form 1 3 topics

  1. Ecosystems and the environment An ecosystem is a community of living things interacting with each other and with their non-living environment. Notes 1 PDF
  2. Matter: states, elements, compounds and mixtures Matter is anything that has mass and takes up space. Notes 1 PDF
  3. Separation techniques Mixtures can be separated using differences in the physical properties of their parts. Notes 1 PDF

Form 2 1 topics

  1. Atomic structure and the periodic table An atom has a tiny central nucleus containing protons (charge +1, mass 1) and neutrons (charge 0, mass 1). Electrons (charge −1, almost no mass) move around the nucleus in shells. Notes 1 PDF

Form 3 2 topics

  1. Acids, bases and salts acid + base → salt + water Notes 1 PDF
  2. Metals, non-metals and chemical reactions From most to least reactive: potassium, sodium, calcium, magnesium, aluminium, (carbon), zinc, iron, lead, (hydrogen), copper, silver, gold. Notes 1 PDF

Form 1 1 topics

  1. Measurement, forces and motion Length – metre (m); mass – kilogram (kg); time – second (s); temperature – kelvin (K) or °C; current – ampere (A). Notes 1 PDF

Form 2 1 topics

  1. Energy, work, power and machines Kinetic, potential (gravitational and elastic), chemical, heat, light, sound, electrical and nuclear. Energy cannot be created or destroyed, only changed from one form to another (conservation of energy). Notes 1 PDF

Form 3 1 topics

  1. Electricity and magnetism Use fuses and circuit breakers, earth wires on metal appliances, and never touch switches with wet hands. Don't overload sockets. Notes 1 PDF

Form 2 1 topics

  1. Heat, light and waves Uses: a vacuum flask reduces all three; houses are painted white to stay cool. Notes 1 PDF