Dissection Specimens for Biology (Earthworm, Crayfish, Fish and Frog)

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Retail: $29.00
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Item #: 031154
Grades: 9-10

Additional Details

Publisher: Nasco

About Dissection Specimens for Biology (Earthworm, Crayfish, Fish and Frog)

Category Description for Exploring Creation with Biology

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Customer Reviews

4.2 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great product for grossing out teens
I used this set for my students in our homeschool co-op biology class. The set kept well for several months until needed in class. The specimens were nice and large and well preserved. Teens were modestly grossed out while dissecting and we learned a whole bunch.
August 11, 2018
over 2 years ago
Great specimens
These are great specimens, but it would have been helpful if they were individual bagged.
June 14, 2018
7 months ago
I was extremely disappointed to discover that the specimens were not individually wrapped. My son had to reach into the bag of specimens to find the earthworm and now we are trying to keep the remaining specimens "fresh" for future dissection labs. It's disgusting. A classmate who ordered her dissection kit from ChristianBooks.com had individually wrapped specimens. I think they were a little more expensive but well worth the extra money.
March 26, 2018
9 months ago
Biology Dissection Kit
It was well priced compared to other companies. The frog was a bullfrog....huge! Organs were easy to see. They were a bit squished though, but fine for the purpose.
May 27, 2017
1 year ago
ALL SPECIMENS IN ONE BAG, not individually packaged.
Once the bag is open, all animals are exposed to the air. We use them over the course of a month, so this is a HUGE negative for me.

Animals are of very large size and the price is excellent, nevertheless, I would not have purchased them had I known I'd need to make storage arrangements.
February 25, 2017
1 year ago
Good specimens
These worked fairly well for dissection with the Apologia Biology course. They were a bit tougher than a fresh specimen, of course, but did the job.
May 5, 2016
over 2 years ago
Just right
We bought this for our daughter to use while doing the Apologia Biology book. Over the years we have collected all the other tools and didn't need to buy the whole set. This was the best place to get the needed specimens. Service, price and quality were just right
April 21, 2016
over 2 years ago
Outstanding items
We received the Biology dissection specimens, and they were exactly as described. Everything was packaged nicely so that we could remove each specimen separately per each lesson. Everything was clean and scent free, and that was a plus because I wasn't sure what to expect.
April 14, 2016
over 2 years ago
a great kit
The size of the specimens was large which is especially helpful to see all of the things students are looking for. Much larger than the specimens that other students in the co-op class had. The teacher asked students to take a look at these specimen for examination.
March 24, 2016
over 2 years ago
Dissection Labs for our group
Your dissection kits arrived quickly for our lab sessions. The specimens are large and easy to work with. The boys are able to identify the systems they are researching for their work with Apologia Biology second edition. Thanks for helping make our class a success!
March 14, 2016
over 2 years ago
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Browse 5 questions Browse 5 questions and 73 answers
Why did you choose this?
Rainbow Resource Center Store
For Biology class
Sarah K on Dec 13, 2018
Perfect for Biology dissections and the best price around!
Julie M on Oct 30, 2018
For Biology class
Sarah K on Dec 13, 2018
Classical Conversations Challenge II Biology Dissections
Robin C on Dec 4, 2018
Perfect for Biology dissections and the best price around!
Julie M on Oct 30, 2018
homeschool assignment
Angela K on Oct 12, 2018
To fulfill the requirements of the Biology class.
Melissa R on Oct 6, 2018
My 10 th grader is doing biology and needed these.
Rochelle K on Sep 7, 2018
Sonja S on Aug 29, 2018
Needed to replace specimens previously used. Love this science.
Liberty K on Aug 28, 2018
Just what I needed.
Mary Ann S on Aug 28, 2018
student needs
Karen T on Aug 26, 2018
for my student
Sharon W on Aug 21, 2018
This is definitely a necessary part for the learning experience.
Elizabeth K on Aug 15, 2018
Tannis D on Aug 14, 2018
For Freedom Project Academy Biology course
Kris S on Aug 4, 2018
This kit corresponds with our science curriculum and is it fairly inexpensive and much simpler than trying to obtain individual specimens on our own.
Nathan R on Aug 4, 2018
required by FPA
Stan L on Aug 2, 2018
biology class
Sarah K on Jul 31, 2018
It had the parts I needed.
Elise P on May 15, 2018
Already own the dissection tools and just needed the specimens. Great price.
Julie E on Apr 27, 2018
Just needed the specimens.
Cynthia M on Apr 2, 2018
Already have the tools, just need the bodies.
Wendy F on Mar 20, 2018
I have purchased these specimens for a Biology co-op course I teach. I have used these for the past three years and have been happy with the consistant
quality. The specimen sizes are good, although the worms are average in size-wish they were a bit larger.
Heid R on Mar 14, 2018
Beginning Biology dissection
Deanna H on Feb 26, 2018
Rainbow Resources ships quickly, has great customer service and has the science products that I need on hand. Prices are cheaper than ordering through the science supply company too.
Charity C on Feb 26, 2018
Best price.
Kathryn M on Feb 25, 2018
Need these items for my daughters Biology class.
Stephanie B on Feb 22, 2018
I teach biology to small groups of Biology students and these specimens have always been great for their dissections.
Jennifer T on Feb 20, 2018
My daughter is up to the Modules where she will be doing dissections. I was very pleased with the price over other websites
Brenda W on Feb 15, 2018
Andrea T on Feb 12, 2018
Daughter needs it for Biology class.
Kimberley B on Feb 2, 2018
We need these dissection specimen for Exploring Creation with Biology.
Amie S on Jan 15, 2018
I bought these for my third homeschooled biology student. They served us well for my first two children. As a public-schooled mom, I didn't have much in the way of helpful dissection experience; I've enjoyed seeing it firsthand on our kitchen table.
Heather S on Jan 12, 2018
I chose this set because of the resealable bag and previous orders have had good specimen quality.
User on Jan 5, 2018
Good reviews and good price. Thank you.
Michael R on Dec 27, 2017
Andrew L on Dec 23, 2017
needed for a co op class
Carin B on Oct 23, 2017
Best price!!
Nancy S on Oct 23, 2017
This item was the most cost-effective I found.
User on Oct 5, 2017
Nice specimen kit we have used before
Cynthia R on Sep 15, 2017
I shop from Rainbow Resource because they always seem to have what I need!!
jacki C on Sep 11, 2017
needed for coop biology class
Cindy M on Aug 29, 2017
Needed this for Biology Curriculum
Joanne C on Aug 29, 2017
Doing homeschool biology, need these for labwork!
Shirlee S on Aug 27, 2017
It is required for Biology lab.
Willi Y on Aug 11, 2017
On the school list
Julie H on Aug 11, 2017
Daughter is doing Biology this year.
Jeff S on Aug 11, 2017
YOu ship to our APO address. Thank you.
Tyson G on Aug 7, 2017
best price. good specimens.
sarah r on Jun 7, 2017
I needed this set to go with my daughter's biology book.
Tawny G on May 9, 2017
Needed for Homeschool Biology and these were the best price at the time.
JANA W on Apr 13, 2017
Classical Conversations Challenge II Biology Dissections
Robin C on Dec 4, 2018
homeschool assignment
Angela K on Oct 12, 2018
Are there instructions for the dissections included with these?
A shopper on May 2, 2017
BEST ANSWER: No instructions. These are specimens only. Dissection instructions are available online although these specimens are geared to the dissection experiments in the Apologia biology course.
Since these specimens are packaged together, do they need to be used quickly? Or will they remain "fresh" over several weeks after the bag is opened?
A shopper on Dec 30, 2016
BEST ANSWER: Personally, my experience with these specimens was positive. We bought them in July. I opened the ziplock bag they were in at that point and examined the specimens. Then, I rebagged them with two layers of ziplock bags. I did not use the specimens until March and April of the following year. So, almost a year later, they were still moist and very usable for dissections.
Are the specimens soaked in fermaldahyde? Do the specimens expire? I read elsewhere that they weren't and expired after about 9 months. Thank you!
A shopper on Aug 26, 2016
BEST ANSWER: Personally, my experience with these specimens was positive. We bought them in July, and I re-bagged them when they arrived because the bag they were in was leaking somewhat. I did not use the specimens until March and April of the following year. So, almost a year later, they were still moist and very usable for dissections.

Here's the quote from the company that supplies them: "Most NASCO–Guard® specimens are originally fixed in a 3.7% formaldehyde solution, which is still the best animal tissue fixative known. In the NASCO-Guard® process, skilled technicians remove the formaldehyde fixative in a series of water baths, then perfuse the specimens with propylene glycol until tissue fluids contain at least 25% glycol; this inhibits the growth of decay organisms by raising the osmotic pressure of the specimens. Propylene glycol also acts as a humectant to insure moist specimens, and it lowers the vapor pressure of residual formaldehyde, thus markedly reducing the concentration of formaldehyde fumes in the lab. Perfusion also washes away water-soluble carbohydrates and proteins, which could nourish decay organisms. Residual formaldehyde is further reduced as it reacts with propylene glycol to form hemiacetals and acetals, which have a very low order of toxicity."
What species is the frog?
A shopper on Mar 25, 2016
BEST ANSWER: Not 100% sure but they were HUGE. Barely fit in the dissection tray!
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