Audiobooks Roller Coaster Marble RunAuthor Andrew Gatt –

Get ready for fun with this easy to build marble run that s over two feet tall Let the races begin, with this amazing marble run roller coaster It s so simple to build just press out the model pieces, assemble the marble run using glue or adhesive tape, and you re ready to go The track has a switcher and two funnels plus a gravity defying loop the loop, fun steps, and amazing slopes so the winning marble will always be a surprise The base of the book becomes a secure stand for your model, and you get easy to understand explanations of the physics and engineering involved Muito legal para interagir com a crian a e estimular o processo de montagem em equipe Instructions a little confusing Pieces especially tabs are very small and difficult to work with The author has a wonderful website where he sells digital copies of a marble run for a few dollars which I highly recommend over this book.