← 4.4 Earth and the Solar System

Size, shape and position of Earth

Social Studies · Grade 7 · about 40 minutes

Earth is the third planet from the Sun, an oblate spheroid about 12 740 km across at the equator, in the habitable zone.

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  • 7 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
  • A quiz that marks itself as you go
  • Your progress kept across every subject you take
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