Forces with Dr. Bob!

We had the privilege of having Dr. Bob come to our school again to lead a lesson on forces with the kids.  We have been studying the vocabulary words about forces (push, pull, gravity, friction) and learning hand signals to remember them as well.  When Dr. Bob came, we were able to put this learning into action!  The students were able to try out all the forces on ramps with marbles.  Here are some photos of the process.  Thanks to Dr. Bob for coming to our school and sharing his enthusiasm and knowledge!!