Invertebrate's

Such a sweet and easy demonstration of Invertebrate's by 'Halfway Homeschooling' http://halfwayhomeschooling.blogspot.ca/2013/02/w-learning-alphabet-hiding-worm-craft.html

We used a toilet paper roll, a wooden toy bull and a silk scarf to learn how worms have no bones.

They also have no eyes or ears and very little brain, yet they are the most crucial insects to life on Earth.