My Government (5 titles)
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Plant Power (6 titles)
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Hindenburg
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2.9 |
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Cars
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2.6 |
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Man-Made Disasters (5 titles)
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Helicopters
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2.8 |
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Deepwater Horizon
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2.9 |
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Super Chameleons
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2.7 |
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Challenger
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2.9 |
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Motorcycles
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2.6 |
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Hot Air Balloons
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2.8 |
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Airplanes
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2.6 |
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Speedboats
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2.5 |
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Super Hummingbirds
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2.8 |
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Titanic
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2.9 |
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Super Cockroaches
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2.9 |
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Chernobyl
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2.9 |
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Nature's Superheroes (5 titles)
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Super Rats
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2.7 |
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Trains
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2.9 |
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Super Ants
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2.8 |
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Ants
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2.8 |
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Animal Architects (7 titles)
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STEM Careers (16 titles)
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