When it comes to worms, there is no specimen more impressive than the Giant Gippsland Earthworm. Check out this video to learn more about this massive worm:
Giant Gippsland Earthworms are gross yet fascinating, but these worms are found in Australia. What about the worms in your own backyard? They might not be giants, but the common earthworm are still pretty impressive little animals.
The common earthworm (Lumbricus terrestris,) also called a night crawler, is found throughout North America and Europe. Compared to the Giant Gippsland Earthworm which is usually about 20cm long, the common earthworm is usually just 7-8cm long.
The earthworm has a mouth and a butt (anus). It also has a brain, a nerve cord (the way humans have a spinal cord,) a heart, and a digestive system. So we know what worms look like: they can be big or small, and they are made up of several different parts. But what do earthworms do? Earthworms are experts about dirt. They tunnel through soil making pockets of air and water which are important for plants and the microorganisms that live in the soil.
To help learn more about worms check out these Frequently Asked Questions posed by students just like you! As always, feel free to ask me questions, and I'll get back to you as soon as I can. Good luck on your new science unit, and learning all about earthworms!