The 1966 blockbuster that made dirt... dare I say... sexy?
Explains that different kinds of soil are mixtures of sand, clay, and humus; tells how the weathering of rocks helps make soil; includes simple experiments to show the kind of soil in which different plants grow well.
Practical Effects
Real soil experiments you can do in your kitchen.
Production
Gorgeous 16mm nature cinematography of... rocks crumbling.
Trivia, insights & behind the scenes
This film emerged during the 1960s environmental awakening, when classroom documentaries became crucial tools for teaching ecological literacy before Earth Day existed.
The 'unknown' director likely worked for a government agricultural extension or educational film studio—many such films were anonymously produced by teams of scientists-turned-filmmakers.
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