I saw this from a blogger from the Living Life Intentionally Link Up. I did this with the kiddos and they loved it. We're watching the Earth Worms as they make their little tunnels in the jar, and then we'll let them go. It was a great activity and it taught the kids a lot of science! Here is where I got the idea.
Hammer & Nail
Grass, Leaves, or Oatmeal (for earthworms to munch on)