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Lifetime Warranty See details

A full-color guide: "Attractive Microscope. Scrutinizing the Microcosm"

Book language
VAT included
The price is valid only for the online store and may differ from the prices in retail stores.
All specifications

With the Levenhuk K50 Experiment Kit, you will learn how the world is arranged. You can look at it from within and see what is not visible to the human eye: the core composition of what we eat, drink, and wear. The Levenhuk K50 will open a whole new dimension — the world is revealed to you at the microscopic level.

The kit has everything that you need to prepare microscope slides yourself. It is a unique set of tools that will help you organize a research laboratory of your own at home.

The detailed guide will teach you how to properly prepare for and conduct various experiments. You will be able to observe the reaction of cells to cold and heat as well as exposure to various chemicals, for example.

Levenhuk K50 Experiment Kit includes:

  • “Attractive Microscope. Scrutinizing the Microcosm” User Guide
  • 5 specimens: fly limb, onion bulb, cotton stalk, tree trunk slice, pine slice
  • Forceps
  • Hatchery for brine shrimp
  • Microtome (sample slicer) — a tool that allows you to make very thin (fraction of a millimeter) slices of samples that is necessary for studying the sample under a microscope
  • Flask with yeast
  • Flask with sea salt
  • Flask with pitch
  • Blank glass slides (5 pieces)
  • Dropper
  • Dust cover

Usage: General use product. It can be used by children over 3 years old.

"Attractive Microscope. Scrutinizing the Microcosm" User Guide Sample Pages

Denise Seemann (2022.03.07)
Werte Damen u. Herren, Es liegt keine Beschreibung/ Heft in deutsch oder wenigstens englisch bei. ( Das beiliegende Heft ist wahrscheinlich in italienisch) Wie soll ein Kind das Set, außerhalb von Italien, dann sinnvoll nutzen? Gibt es eine deutsche oder englische Version, wenn ja wo kann man diese herunterladen? Vielen Dank für Ihre Bemühungen D.Seemann
Customer service:

Birgit Moeller (2020.12.17)
Where can I find a manual for the K50 Experiment Kit in English language?
Customer service:
Hello, there is no manual, only K50 User Guide in English that comes with the kit.

Enyingi Anett (2018.12.25)
Üdvözlöm! A Levenhuk LabZz M101-es modellről érdeklődnék. Nincs magyar leírás hozzá,ezért szeretnénk Önöktől metudni hogy a rákokat hogyan lehet kitenyészteni? Mielőbbi válaszukat előre is köszönöm!
Customer service:
Szia! Kérjük, forduljon magyarországi képviseletünkhöz 36 1 9989202-es telefonszámon vagy vegye fel a kapcsolatot:

Ariel Sherman (2017.01.30)
What is pitch used for and how to breed artemia?
Customer service:
A flask with pitch is included in the kit for preparing samples. A detailed description of how to grow Artemia can be found in the detailed guide that comes with the Levenhuk K50 Experiment Kit.

Alexander Mills (2017.01.15)
Hello, is this kit suitable for Bresser National Geographic 40-640x microscope?
Customer service:
Yes, Levenhuk K50 Experiment Kit is suitable for Bresser National Geographic 40-640x microscope.

Mason Ford (2017.01.05)
Good afternoon! Could you tell me how to properly use a microtome from this set?
Customer service:
The microtome has two holes on both sides where you insert an object, then rotate the handle with the blade.

Mishon Thompson (2016.12.14)
Does the microtome give a nice, thin cut?
Customer service:
Yes, the microtome will give you a nice thin cut.

Elvira Watkins (2016.11.30)
Hello! Is this kit suitable for Bresser Junior Biotar 300x-1200x? If not, then advise me some other set. Thank you in advance!
Customer service:
Yes, Levenhuk K50 Experiment Kit is suitable for this microscope model.

Rosanne Boyd (2016.11.26)
Hello! What magnification does this microscope provide?
Customer service:
Levenhuk K50 Experiment Kit doesn't include a microscope.

Luis Grant (2016.11.15)
We can't find a slot to insert objects in the microtome... Where is it?
Customer service:
The microtome has two holes on its sides for inserting objects. Note that a handle with the blade rotates.

Ramiro Munoz (2016.10.07)
Hello! 50l microscope was discontinued, right? What other model would you recommend for a kid?
Customer service:
You probably mean the Levenhuk 50L NG model that was recently discontinued indeed. Levenhuk Rainbow 50L Microscope is available for purchase at . This is a wonderful children's microscope.

Ben Lynch (2016.07.10)
artemia delivered alive?
Customer service:
Levenhuk K50 Experiment Kit contains dried brine shrimp.

Ava Jordan (2016.04.30)
There's some info in the book about cavity slides, can I purchase some of these in your store?
Customer service:
Unfortunately, such blank slides are not available in our store.

Mark Allen (2016.04.21)
Is the kit suitable for use with Levenhuk 320?
Customer service:
Yes, you can use Levenhuk K50 Experiment Kit with Levenhuk 320 Biological Microscope.

Denise Grant (2016.01.07)
Hello! We recently bought this kit. The manual says that the kit includes a glass slide with cavity for the hanging drop. We didn't get anything even similar. Where can we buy it?
Customer service:
The manual says that such experiments are possible in general, it doesn't say that it comes in the kit. You can buy microscope slides with cavity separately. Unfortunately, we don't have such glasses in our product range.

Marc Molina (2015.12.06)
how to prepare microscope samples?

Justina Brock (2015.12.04)
Does the kit include cover slips?
Customer service:
No, Levenhuk K50 Experiment Kit doesn't include cover slips. You can order them separately here: .

Willis (2015.11.08)
The description says that this kit includes cover slips... but in reality it doesn't... I like it either way.
Customer service:
Levenhuk K50 Experiment Kit does not include cover slips, but it does include blank glass slides, please don't get confused.

Katy (2015.04.10)
Hello! How can I buy or download a copy of 'Attractive Microscope. Scrutinizing the Microcosm'?
Customer service:
The Levenhuk "Attractive Microscope. Scrutinizing the Microcosm" user guide comes only as a part of Levenhuk K50 Experiment Kit, it can't be bought separately and is not available for download online.

Lisa Lewis (2015.01.12)
Hello! Is this kit suitable for use with Levenhuk Rainbow 2L NG Amethyst? Thanks in advance!
Customer service:
Levenhuk K50 Experiment Kit is perfectly suitable for use with Levenhuk Rainbow 2L NG Amethyst Microscope.

Liam Hardy (2014.12.20)
Hello! Do you have any dyes for microscope samples staining?
Customer service:
Unfortunately we don't have any dyes for microscope samples staining in our product range.

Emma Barnett (2014.12.13)
Is it suitable for {{ {{ }} }}?
Customer service:
Yes, Levenhuk K50 Experiment Kit is ideal for use with Levenhuk 2S NG Microscope.

Claire Luna (2014.11.04)
I don't quite get it... this artemia breeding kit... what is this sea salt water used for?
Customer service:
If you put artemia in salt water, you will be able to observe their development under the microscope.

Gerald (2014.11.04)
So I need to place the cover slip with immersion oil on the slide with a sample and then low the objective lens?
Customer service:
Yes, you are right. The immersion objective should be lowered until it touches a drop of oil previously placed on the cover slip.

Gerald (2014.11.03)
Hi! I'd like to observe dust under the microscope... should I use immersion oil for this? If yes, then where should I place a drop?
Customer service:
Immersion oil should be used with 100x objective lens. A drop of immersion oil should be placed on the cover slip and the objective has to be lowered until it touches the drop. Dust can be observed without this technique.

Lillian (2014.06.15)
Hello! Tell me please what is flask of pitch used for? As I get it, it is used as adhesive for preparing slides? It is not toxic, I hope? Can I buy it separately?
Customer service:
Pitch is needed for gluing blank slides and cover glasses together. It's not toxic. Unfortunately, we do not sell this product separately.

Syao (2014.05.31)
Hello! Can I use flasks in the kit for storing other microorganisms?
Customer service:
Yes, you can use them for other microorganisms.

JOSEPH ROSS (2014.05.04)
Do brine shrimp eggs expire?
Customer service:
Levenhuk K50 kit has no expiration date.

Mike Stewart (2014.04.30)
Hello! Tell me please why do I need yeast for brine shrimp breeding? How to use them?
Customer service:
Brine shrimp and yeast are two independent samples. Use them separately. To breed brine shrimp you need to add some salt water into the hatchery; and for yeast you need just water drops. These processes are described in detail in the "Attractive Microscope. Scrutinizing the Microcosm" User Guide that is included in the kit.

Robin Fowler (2014.04.02)
Can I use this set with Celestron digital microscope kit?
Customer service:
Yes, you can. Levenhuk K50 Experiment Kit can be used with any microscope.

Eddie Graham (2014.01.26)
Hello! The manual says that brine shrimp appear the next day. But nothing's happening - I just see black pellets. How much salt should I add for breeding and how long should I actually wait?
Customer service:
One spoon of eggs, 2 liters of water, three tablespoons of salt. At room temperatures of 18-20° C crustaceans will be born two days later.

Kathy Bell (2014.01.23)
Hello! Tell me, please, what minimum magnification a microscope should produce to conduct all the experiments from the kit?
Customer service:
Levenhuk K50 Experiment Kit is designed to be used with microscopes with an increase from 40 to 640-fold and higher.

spencer (2014.01.16)
A flask with brine shrimp... "Brine shrimp is a crustacean that is common in the seas and oceans all over the world and is used as food for aquarium fish and also in fish factories." what for??
Customer service:
If you put these crustaceans in salt water, you will be able to observe their evolution.

Jason Wormald (2013.12.05)
Can I use this kit with Levenhuk 40L NG?
Customer service:
Hello. Yes, you can use Levenhuk K50 Experiment Kit with Levenhuk 40L NG microscope.

Julie Walker (2013.11.12)
which microscope do I need to see detailed images of the cell?

Tom Watkins (2013.09.24)
which microscope it is better to buy for a kid?
Customer service:
The best choice for a kid would be Levenhuk 50L NG - excellent biological microscope designed especially for children, everything needed for observations is already included in the kit.

Brenda Treick (2013.08.12)
I can't find this microscope you recommended, Levenhuk 50 something. Please give me a link to it.
Customer service:
Here it is: . This model is available in 5 different colors: You can pick one of your child's favorite color.

Susan kuhn (2013.07.14)
Got the kit shipped yesterday, we are all very happy with it, especially my kid (I highly recommend it to everyone, it's very entertaining!!! ). Also I want to thank managers, they helped me out with my telescope problem.
Customer service:
Thank you for your feedback on Levenhuk K50 Experiment Kit!

Jill Foley (2013.07.03)
Hi!!! I want this kit very much. How do I breed brine shrimp? Is it described in the guide?
Customer service:
The kit includes the "Attractive Microscope. Scrutinizing the Microcosm" User Guide, which provides a lot of detailed information on every possible experiment that may be conducted with this kit.

Susan kuhn (2013.06.16)
How do you think would this kit be interesting for a 8y/o kid (he's into microscopes)? Can it be used with microscopes of other brands? Do you sell petrie dishes, lancets and optical filters?
Customer service:
This experiment kit would be very entertaining for all ages. You can use Levenhuk K50 Experiment Kit with microscopes of any brand and make. These accessories are unavailable in our shop.

Casey Wood (2013.06.05)
Can I use this kit with 40-900x microscope? Will I be able to observe small objects properly?
Customer service:
Yes, under 900x magnification you can see all the details.

Mike Trahan (2013.04.29)
Please explain how to use microtome included in the kit. I can't make a slice.
Customer service:
This process is described in the "Attractive Microscope. Scrutinizing the Microcosm" User Guide.

Nikki Sanders (2013.04.21)
How to breed infusoria? please tell me what magnification is required for observing them?
Customer service:
This kit doesn't allow to conduct practical experiments on breeding infusoria. You can observe them starting from 40x.

Julie Walker (2013.04.11)
Hi! Is there microtomes sold separately in your shop!
Customer service:
No, they are not on sale.

George (2013.03.16)
Is this kit suitable for preparing histologic specimens?
Customer service:
Levenhuk K50 Experiment Kit is intended for preparing slides out of materials included in the kit like yeast, sea salt, brine shrimp.

Brent Jones (2013.03.12)
Thanks! User Guide is very informative and interesting. My child is very happy with it.
Customer service:
You are welcome! Thanks for your feedback on Levenhuk K50 Experiment Kit!

Julie Walker (2013.03.04)
It's very easy to breed infusoria: you need to place a wisp of dried grass (hay) in the bowl of water and then put it in the warm place for a couple of days.
Customer service:
Thank you for your comment.

Julie Walker (2013.03.04)
Hello! That one can't regulate the thickness of the slice is a letdown. Do you have microtomes with micrometer-dial screws? Best regards.
Customer service:
Unfortunately this kind of microtomes is currently unavailable in our shop.

Julie Walker (2013.03.01)
Hello! Can you please explain to me how to use a microtome, I can't undestand what the book reads. How do I regulate the thickness of a slice?
Customer service:
You need to insert the sample in the sample holder and then cut the thin slice with rotary motion. The thickness is not adjustable.

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