Press out the pieces, assemble your roller coaster and watch as your structure grows. Then race marbles from two starting points and see which marble comes out first! Includes information about the science behind your build.
Set against the golden age of the American dream and the silver age of comics, and awash with pop-culture references - TV shows, comic books, super-heroes and music, this title details how their innocent, joyfully creative play changes as they grow older and encounter name-calling, abusive bullies, and the value judgments of others.
