Bocknek, Jonathan

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bocknekjonathan

The science of soil

1999
Discusses the sources, ingredients, types, and nutrients of soil and the life forms that it supports.

The science of plants

1999
Provides information on a variety of plants, discussing life cycles, habitats, their use as food, plant parts, seeds, cones, flowers, fruit, and the chemicals and fiber they can provide. Includes activities such as drawing, answering questions, and planting seeds.

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