How to make Marble Run with escalator out of cardboard
Marble Run with escalator from Cardboard own hands
Science Projects | Escalator Working Model
Marble Run with escalator from Cardboard own hands How to make Marble Run from Cardboard MARBLE RUN
Materials:
4.5 volt motor, power button, battery, cardboard and hot glue, marbles balls.
#Scienceprojects #Escalatormodel #Workingmodel
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