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Golden Nature Guide - Fossils
Golden Nature Guide - Fossils
05584

This concise introduction to the life of the past as revealed through fossils, is an invaluable and enjoyable guide which includes:
• Descriptions of the typical plants and animals of major geological eras
• Maps showing where fossils can be found
• The history of the development of life on earth
• Full-color illustrations


Life of the past as revealed through fossils. 481 illustrations.

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$5.95 Each
Air Pollution Test Kit
Air Pollution Test Kit
15177

Learn concepts of air pollution and its harmful effects using one form of a common air pollutant, sulfur dioxide on experiments with plant life. This kit provides instruction, apparatus and materials to experiment with plant seedlings exposed to a sulfur dioxide atmosphere at a known concentration which produces an effect on plant life that can easily be observed within several days.

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$99.00 Each
Water Test Kit
Water Test Kit
09415

Ideal field test kit for performing 4 important experiments on water pollution. Test water samples for dissolved oxygen content, chlorides, phosphates, and water hardness. This kit provides all the apparatus and materials necessary for performing each test several times. Comes complete with instruction booklet.

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$43.95 Each