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Earthworm, 8-10", plain specimen
Study the digestive, circulatory, reproductive, and nervous systems of the earthworm. Plain (not injected) preserved dissection specimen. Earthworm species is Lumbricus terrestris (nightcrawler).
Note: Dissection specimens are initially preserved with a formaldehyde solution, the best animal tissue fixative. The formaldehyde is then displaced with water and then with a glycol solution to produce a moist, low-fume specimen which can be stored almost indefinitely. We recommend that you use specimens within one year of purchase to ensure the best tissue quality. Specimen discoloration over time is normal and does not indicate decay.
Store your specimens at normal room temperature--refrigeration is not required. Storage in attics or garages at high temperatures will damage the specimens. Once opened, specimens can be resealed in a Zip-lock bag to prevent them from drying out for later use.
Note: This item only ships to the 50 US states with Economy, Ground or Express shipping options.
More Information
Overall Rating: Write an online review and share your thoughts with other customers Sort Reviews: Newest | Oldest | Highest Rating | Lowest Rating  - Friday, April 26, 2013 Earthworm DissectionReviewed By: Jodi By carefully dissecting this earthworm, you can view its digestive, circulatory, reproductive, and nervous systems. Purchase the guide and dissection tools separately, and be sure to add extra pins, as they are invaluable. Dissection teaches attention to detail, careful following of directions, and respect for the life of the specimen. It is truly wondrous to see how intricate even the lowly earthworm is. Recommended.  - Wednesday, April 03, 2013 Nice specimen Reviewed By: Lilly It was a thick earthworm which made it easier to dissect and study its organs.  - Sunday, January 20, 2013 good buyReviewed By: Linda Very glad I ordered this product. Dissection went very well with the kids ages 5-12.  - Wednesday, January 09, 2013 It was awesome!Reviewed By: Lisa I teach 15 students at a small homeschool class and we had a lot of fun. THis was their intro to dissection. It went well. Not smelly - I really liked that! THank you  - Monday, November 05, 2012 earthwormReviewed By: Teresa awesome specimin Read More Reviews - Thursday, October 25, 2012 great product Reviewed By: amy everything as described - very pleased!
- Wednesday, October 17, 2012 great worms! Reviewed By: Julie The worms that we got were wonderful. They were well preserved and very big. The kids had a great time and were able to find everything.
- Tuesday, September 18, 2012 worm Reviewed By: Vicki Conley I ordered 4 different specimens separately because I already had a disecting kit. My worm was super long and well preserved. The shipping was fast and efficient.
- Monday, April 09, 2012 Good size but Dried Out Reviewed By: Cindy Stevens Great size to work with but a bit dried out and stiff to work with. Hard to cut open and see the inside. Used for Apologia Biology.
HST adds: We guarantee our specimens for one year from purchase. If your purchase date was within a year, please call customer service at 1-800-860-6272 for a refund or replacement.
- Saturday, January 21, 2012 Co-op Teacher Reviewed By: Elizabeth I just had to write and let you know how impressed I was with the earthworm specimen. I ordered for a co-op and the students were able to see even the tiniest structures like the ganglia on your specimen. For many of these high-schoolers, this was the first experience with dissection and the earthworm was easy to cut and easy to see the organs. The specimen had a low odor, too. It was a positive experience for all!
- Wednesday, January 18, 2012 A Little Difficult Reviewed By: Jodi Although this is considered the "beginner" dissection in the book "How to Dissect", I've found the dissection a little difficult because of the worm's small size. I've finally set it aside, sealed in a plastic ziplock bag, and I am intending to come back to it after I have some dissection experience with larger specimens, such as a frog.
- Wednesday, May 25, 2011 Worms Reviewed By: Marianne Though the prices were cheapest in comparison with other sites and companies, some of the worms we ordered were dried out and unusable. I was disappointed. [Home Science Tools adds: if your specimens are unusable like this, please call us at 800-860-6272 and we will be happy to help!]
- Tuesday, January 25, 2011 wonderful Reviewed By: Mary I was very impressed with the worm. I have ordered from other companies and had the worm arrive dry and difficult to dissect... not so with this one! It was perfect, easy to cut and easy to see the organs.
- Wednesday, December 22, 2010 The Perfect Worm! Reviewed By: Jeanne We had never ordered from your site before until we needed a worm for our Annelid unit. The worm specimen sent was the perfect size for seeing all we had studied! It also was practically odorless once we got started! We were very satisfied customers! Thanks! We'll definitely use you again for future science projects!
- Thursday, May 27, 2010 Great! Reviewed By: Bernie True to the reviews the smell was not that bad. I dissected the worms with four set of 32 kids at a time. With two doors open there was no residual smell once all the worms and supplies were disposed of and cleaned. Worked out well. The guide was helpful but would have been better if it included more details about the reproductive organs and how to find the locations by counting the segments.
- Monday, April 06, 2009 Wonderful Wigglers Reviewed By: Lexie Wallace Like most of the comments above, these earthworms were great for our dissection! We even had some five year-old kiddos dissecting and they loved being able to see the various organs with these earthworms! They were not smelly or difficult to deal with at all- Thanks!
- Monday, February 02, 2009 Earthworm dissection Reviewed By: Vicki Williams Our Apologia class dissected earthworms that I purchased from Home Science Tools. They were very easy for the students to work with and the internal parts were very visable. Thanks for making our dissection a successful and interesting learning experience.
- Friday, January 30, 2009 Great Specimen Reviewed By: Pam I was very pleased with the large size of these earthworms. They were well preserved, did not have a strong odor and the organs were easy to find and identify.
- Monday, January 05, 2009 But we thought it needed to be DEAD! Reviewed By: Rebecca I purchased this well in advance of needing it in our science curriculum. It was a HUGE earth worm, so it would have made a great specimen for dissection. Unfortunately, when we finally got to the lesson that required a worm, we discovered that we were to do the experiment with a LIVE worm (don't worry, no cutting or otherwise mishandling of the worm was required). Dang, I would have much preferred working with the dead one!!
- Thursday, September 18, 2008 Nerve Structure Visible Reviewed By: Mrs. T - (Teacher) These are some of the largest and best preserved specimens I have found anywhere. The students are able to see the inside structures very well. Odor was minimal.
- Friday, May 23, 2008 Earth Worms Large and preserved well. Worms used from elsewhere were dried and small, but these were very good quality.
- Saturday, May 10, 2008 Fun! Reviewed By: Alison Harrell Good sized worms - used for my 7th graders and the kids were able to see all the organs very well - it's impressive to see that worms are more than just 'goo' inside! This was their first dissection and they loved it! I love HST's service and products!
- Monday, February 11, 2008 Great earthworms! Earthworms were large - organs easily viewable. Great for jr. high level!
- Tuesday, February 05, 2008 good first dissection The earthworms were in good condition, not smelly at all, and large enough to see the anatomy pretty well. My boys are 11 and 12, and neither wanted to dissect anything, but both found the dissection very interesting once they got started.
- Thursday, October 25, 2007 Huge Worms Reviewed By: Michele Lawson I ordered these worms in addition to the lubber grasshoppers and my students were impressed with the huge size of these worms. Dissection was a breeze and the organs were extremely visible because of the size, preservation method, and the overall great condition of the specimens.
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