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Grade 2
An Automatic Smart Street Lamp
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An Object Theft Alarm
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Water Tank-full Alarm
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An Automatic Intrusion Alarm System
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Manual Railway Barrier
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Rubberband Powered Arrow Catapult
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Rubberband Powered Sled
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Rubberband Powered Fan
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Tik Tik Toy
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Make Simple Words
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Ball Kicker Stand
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Scissor Gripper
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Ball Launching Trebuchet
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Manual Swing
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Table and Chair Set
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