This is so much fun for the kids!
Making a "Dirt and Worms" Sensory Activity for your kids is fairly easy. All you will need is:
coffee grounds (for the dirt) Cheap coffee will work. :)
cooked spaghetti noodles (worms)
some grass, flowers, weeds, etc.
I just put all of this into a large tupperware, and my boys loved it. They threw the worms up in the air, and scattered coffee grounds EVERYWHERE. I think I developed an eye twitch, trying to keep it away from the carpet, but their smiles were worth it!
This activity is pretty baby-friendly (if you leave the grass, flowers, and raisins out). Most of the "ingredients" are edible and non-toxic. Just watch out for baby eating the pasta, and getting a caffeine rush. Mine had to sample the spaghetti, and seemed to be disgusted by it, but kept eating more. Mom of the year here. Yep, that's me. I let my kid eat coffee coated spaghetti.
I got this idea from my favorite kid-friendly learning blog: Fun at Home with Kids