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Natural SciencesGrade 7Quality review 0/4

Natural Sciences — Grade 7

A complete, CAPS-aligned Grade 7 Natural Sciences course: the thin living skin of our planet, the materials and elements everything is built from, the three ways heat travels, and the Sun–Earth partnership that gives us day, night and the seasons. Every idea comes in two modes — a precise Theory explanation and an intuition-first Visual picture — with South African examples and practice problems that carry hints and full solutions.

≈ 11 h 32 min6 sections · 32 lessonsNo ratings yet
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What you'll learn

  • Explain what the biosphere is, describe South Africa's biodiversity, and sort living things into groups using observable features
  • Compare the properties of everyday materials and justify the choice of a material for a particular job
  • Read the periodic table as an organised catalogue of the elements, write element symbols correctly, and distinguish metals from non-metals by their properties
  • Explain how heat is transferred by conduction, convection and radiation, and apply insulation to reduce unwanted heat transfer in a home
  • Explain how the Earth's rotation causes day and night and how its tilted axis causes the seasons, and predict how shadows change through a day

Before you start

  • Describe simple ecosystems and food chains, and separate everyday mixtures (Grade 6)
  • Read and interpret tables, bar graphs and simple measurements
  • Work confidently with whole numbers, decimals and simple percentages

Course content

0/32 lessons
1. The Biosphere and Biodiversity4 lessons
  1. The Biosphere: Where Life LivesLesson18 min
  2. Biodiversity: The Variety of LifeLesson18 min
  3. Sorting and Classifying Living ThingsLesson20 min
  4. Biodiversity Under ThreatLesson18 min
2. Materials and the Periodic Table4 lessons
  1. Properties of MaterialsLesson20 min
  2. Elements: The Building Blocks of EverythingLesson18 min
  3. Introducing the Periodic TableLesson20 min
  4. Metals and Non-metalsLesson18 min
3. Heat and Energy Transfer4 lessons
  1. Heat and TemperatureLesson18 min
  2. Conduction: Heat Through SolidsLesson20 min
  3. Convection and RadiationLesson22 min
  4. Insulation and Saving EnergyLesson20 min
4. The Sun and the Earth4 lessons
  1. The Sun: Our Nearest StarLesson18 min
  2. Rotation: Day and NightLesson20 min
  3. Shadows and the Sun's PathLesson18 min
  4. The Tilt of the Earth and the SeasonsLesson22 min
5. Extended Study 18 lessons
  1. The Biosphere: Where Life Lives: Concept MapLesson24 min
  2. Biodiversity: The Variety of Life: Concept MapLesson24 min
  3. Sorting and Classifying Living Things: Concept MapLesson24 min
  4. Biodiversity Under Threat: Concept MapLesson24 min
  5. Properties of Materials: Concept MapLesson24 min
  6. Elements: The Building Blocks of Everything: Concept MapLesson24 min
  7. Introducing the Periodic Table: Concept MapLesson24 min
  8. Metals and Non-metals: Concept MapLesson24 min
6. Extended Study 28 lessons
  1. Heat and Temperature: Concept MapLesson24 min
  2. Conduction: Heat Through Solids: Concept MapLesson24 min
  3. Convection and Radiation: Concept MapLesson24 min
  4. Insulation and Saving Energy: Concept MapLesson24 min
  5. The Sun: Our Nearest Star: Concept MapLesson24 min
  6. Rotation: Day and Night: Concept MapLesson24 min
  7. Shadows and the Sun's Path: Concept MapLesson24 min
  8. The Tilt of the Earth and the Seasons: Concept MapLesson24 min