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A Bean's Life
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Abejas útiles (Helpful Honeybees)
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A Bridge Goes Over
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A...B...Sea
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3.6 |
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Acids and Bases
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6.2 |
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A Coral Reef
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6.4 |
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Acorn to Oak Tree
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2.7 |
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A Dam Holds Back
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Adaptations
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A Dead Log
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A Desert Habitat
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2.8 |
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A Dolphin's Body
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6.6 |
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A Forest Habitat
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3.1 |
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A Freshwater Pond
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Africa
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African Lion
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A Grassland Habitat
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3.0 |
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Agricultural Engineering and Feeding the Future
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7.0 |
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Agricultural Inventions: At the Top of the Field
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5.9 |
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Agua, agua en todas partes (Water, Water Everywhere)
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Aïe! Les serpents qui mordent (OUCH! Snakes That Bite)
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Air
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A Koala is Not a Bear!
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4.3 |
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Albert Einstein
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Canada
USA
