2nd Grade Investigates Rolling Spheres!

Oh the things we've rolled!  We have now moved on to rolling spheres in runways!  

We discovered that for the sphere to complete a runway course,
it needs to start from up high and end low.

The spiral!

A triple runway gets tricky!

The marble is hard to contained with it's smooth surface and no edges so we put a cup at the end of the runway for the marble to roll into.

Down and around the corner!

A loop the loop!

Trying to get the spiral just right.

Down the hill, up the hill and back down again!

Creating a new trick!

Awesome!