Plant Study with Leaves

I sent the boys out into the yard with a mission--to find as many different kinds of leaves as they could so they could the names of trees and other plants. They enjoyed the activity. I think we identified all the trees. It's some of the vines and bushes that I'm unsure of.

Does anyone know what kind of plant this is? It's really common, and it can be seen near poison ivy plants and it looks similar, but this one has 5 leaves at each growth point.

My church friend Lydia says it is a Virginia Creeper vine. Thanks, Lydia!