Αποτελέσματα αναζήτησης - Markle, Sandra
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1
Digging deeper : investigations into rocks, shocks, quakes, and other earthy matters /
Έκδοση 1987Discusses various aspects of geology, such as plate tectonics, erosion, and mineral resources. Includes related experiments and activities.
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2
The kids' earth handbook /
Έκδοση 1991Presents activities and experiments which demonstrate how living things interact with each other and the environment. Includes instructions for making miniature ecosystems.
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