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ZIMSEC · Form 2 · Syllabus 4003

Combined Science

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  1. Nutrition in plants and animals Nutrition is how living things obtain food for energy, growth and repair. Notes 1 PDF
  1. Transport and respiration The heart pumps blood around the body through blood vessels. Notes 1 PDF
  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
  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
  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
  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
  2. Heat, light and waves Uses: a vacuum flask reduces all three; houses are painted white to stay cool. Notes 1 PDF