High Quality Content by WIKIPEDIA articles! On the second Floor is a ball factory where small plastic balls are sent on a circuit where participants are to group them in weight, size and color and then send them to a packing facility where the balls go into a small metal box. There are five stations at which the people stick magnetic barcodes on the boxes and send them off to start the circuit again. On the second level there is also a small cafeteria and a movie and performance hall where various acts and movies about science are shown. The second floor also features a display on the water cycle a display on electricity and a display on metals and buildings.

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