Why do things sink or float? Tub Sub knows. As a boat it floats. As a sub it sinks. For a floating boat push the flexible blue part down. For a sinking sub pull the blue part up and fill the bottom with water. Only the periscope (also a handle) will stay above the water. Encourage thinking and reasoning Encompassing science technology engineering and mathematics STEM learning activities foster logic problem-solving and experimentation. Dimensiuni set: 15x 10 x 19cm. Varsta minima recomandata: 0-2 Ani
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