#30 A Selection of Sweetness
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#31 Comparer les Plaques a Biscuits
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#33 Do you see what I see?
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#34 The Face-Off
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#35 Les Formes des Bateaux
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#36 Les Eoliennes
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#37 Fertilizer Faceoff
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#38 Fours Solaires
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#39 Les Aeroglisseurs
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#40 Natural Electricity
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#41 Quel Sort de Pain Moisi le Plus Vite?
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#42 Golf Ball Dynamics
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#43 Grab the Wind - Efficiencies of Different Wind Turbine Blade Numbers.
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#44 Hooke's Law Applied to Steel Ball Launches
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#45 Defying Gravity
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