Herman the Worm

Herman the Worm or “The Adventures of Herman the Worm” is an excellent way to teach children and young adults about worms. Created by University of Illinois Extension, The Adventures of Herman the Worm is available online or on CD for teachers to add to lesson plans, for students that may be working on a report or research paper, and for parents eager to teach children about the fascinating worm in the earliest stages of their lives.

The Adventures of Herman the Worm covers several areas. The website and CD teach students about the history of the worm, the worms family tree, worm anatomy, how and where worms live, what worms eat, why worms are extremely important to the planet, and worm facts. Kids will also find a fun activities area as well as links to or notes about additional resources.

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Herman the Worm is available in several languages, so kids from all backgrounds can enjoy this educational adventure. The site and CD also offer additional resources for teachers in the “Teacher’s Bin.”

The following is just a sampling of sub-topics offered in each topic area. The “Come Live with Me” section features fun sub-topics for creating and maintaining a worm neighborhood on your own such as:

-Making My Bin

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What info did we provide for you today?:

-How Big Is My Bin?

-How Much Bedding Do You Need?

-Making the Bedding

-Feeding and Taking Care of Your Worms

-Harvesting Your Worm Bin

-My Neighborhood

To get started with Herman the Worm activities and lessons, visit the University of Illinois Extension Urban Programs Resource Network website at http://urbanext.illinois.edu/worms. Enjoy!

Fun Facts About Earthworms by All About

There are literally thousands of different worm species on the planet today. Without them, the earth’s trees, plants, fruits, and vegetables would not survive. Worms do several things for the earth. They aerate the soil, which means they dig tunnels in the soil, which allows air to get to the plant roots. Worms also eat organic matter, digest it, and excrete the digested material. This digested material is called castings. The castings are rich with phosphorus, calcium, and potassium.

Worm castings are so valuable and ten times richer in nutrients that commercial topsoil, that many gardeners and farmers use the composting method to fertilize plants and crops. Worm castings also help create channels within the layers of the earth’s soil, which helps to hold water better and keep moisture in the soil longer. Continue reading to learn more fun earthworm facts.

•There are more than 4,400 different types of worms in existence today. Of the 4,400 species, there are 2,700 species of earthworm. There are more than 1,200 species of another type of worm called the inchworm.

•Earthworms belong to one of several different types of ecological groups. There are three broad ecological groups that have been identified for earthworms including: epigeic, endogeic, and anecic. The groups are based on what the earthworms eat and where they tend to live in the soil. The epigeic group is a litter feeder, litter dweller, pigmented, small in size, and it does not burrow. The endogeic group consists of rich soil feeders, topsoil dwellers, has no pigmentation, burrows horizontally, and it is small in size. The anecic consists of litter and soil feeders, soil dwellers, dorsally pigmented bodies, extensive vertical burrows, and a large size. Size and color are usually good distinguishers for adult earthworms.

•Earthworms can be found in just about every corner of the earth. They live in trees, in bark, and under rocks as well as along rivers, near springs, and in ponds. Their favorite place to live, however, is burrowed inside the earth’s rich soil. During the winter months, they burrow deep within the earth until the surface warms again during the spring. During the warm summer months, worms stay closer to the tops of soil where they create tunnels to wiggle in and out of. These tunnels are extremely important for plant life as they create a path for water and air, which is essential for the survival of plant life.

•The clitellum of adult earthworms contains features called genital tumescence, and tubercula pubertatis. The clitellum features, the male pores, and female pores are found above the clitellum and are all parts of the earthworm reproductive system.

•The earthworm has “setae” which are tiny hair-like projections that are arranged in rows along the earthworm body. The setae are used for locomotion by the earthworm.

•Places like China, Australia, Greenland, and the Sahara Desert have their own indigenous species of earthworms. Besides the Sahara Desert, you will not find large numbers of worms living in “sandy” areas, especially sandy beaches. The vast majority of worms on our planet can only survive under certain environmental conditions.

•Worms have no lungs, so they breathe through their skin. This means that the worm’s environment and skin must be moist at all times. This allows the worm to breathe in oxygen. If the worm’s skin dries out, the worm will die from suffocation. While worms need moisture to survive, too much moisture can be fatal. If too much water is present, it takes the place of oxygen, which will cause the worms to flee to the surface. Once on the surface, worms will be exposed to sunlight. If worms remain in the sunlight for too long, they can become paralyzed.

•In addition to needing a moist environment for survival, worms must also remain close to their food supply. Worms feed off leaves and dead grass, which contain organisms that provide a healthy diet of bacteria, algae, and fungi. Worms feast on dirt as well, especially if they live deeper inside the earth. Worms also eat plants, fruits and vegetables.

•Although you cannot see them, unbelievably, worms do have mouths. The earthworm mouth is called the prostomium. The worm’s mouth is actually big enough and powerful enough to grab a leaf and drag it around. They also have a pharynx, esophagus, crop, gizzard and intestine. When the worm eats its food, it pulls the materials into its mouth with the help of the pharynx and its prostomium (also called acron). This creates a suction motion. This suction motion aids in helping the worm consume large amounts of food in a sort amount of time. The gizzard grinds the food.

•Worms eat so much that they typically produce excrement equal to their own weight every 24 hours.

•The worm’s moist sustenance rich environment plays an extremely important role in reproduction as well. Worms prefer to mate and reproduce in warm moist soil, away from the light.

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