← 4.4 Earth and the Solar System
Origin of the earth
Social Studies · Grade 7 · about 40 minutes
Describe community stories of how the earth began, then the passing star theory and the nebula cloud theory.
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- 6 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