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Petri Dishes with Agar and Swabs - Science Fair Project Kit

4.5 out of 5 stars 69 customer reviews
| 4 answered questions

Price: $32.99 + $8.50 shipping
In Stock.
Ships from and sold by Science Stuff, Inc..

Specifications for this item
Brand Name Science Stuff, Inc.
EAN 0696736158247
Is Assembly Required N
Is Recalled? N
Item Weight 3 pounds
Part Number 1515-K
UNSPSC Code 60141009
UPC 696736158247

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Product Features

  • Enough materials to make 20 Agar Plates
  • 2 bottles of nutrient agar, 20 (plastic) petri dishes, 20 sterile swabs
  • Microwave agar on low until melted, then pour into sterile petri dishes.
  • Science Fair Information, Scientific Method Information included
  • Detailed Instructions Included


Product Details

  • Product Dimensions: 20 x 6 x 6 inches ; 3 pounds
  • Shipping Weight: 4 pounds (View shipping rates and policies)
  • ASIN: B000NNCI68
  • Item model number: 1515-K
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (69 customer reviews)
  • Amazon Best Sellers Rank: #41,376 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

Frequently Bought Together

  • Petri Dishes with Agar and Swabs - Science Fair Project Kit
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  • EZ BioResearch Bacteria Science Kit: Pre-poured LB Agar Plates and Cotton Swabs, E-Book for Science Fair Project with Award Winning Experiments
Total price: $48.79
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Product Description

Includes a sleeve of 20 sterile emptry petri dishes. Contains two bottles od nutrigent agar enough to do 20 dishes. Microwave until melted (aprox. 2 - 5 minutes), then pour into sterile petri dishes. Each Bottle makes 9 to 10 petri dish plates.Includes 20 sterile swabs

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By Andrea Polk TOP 50 REVIEWERVINE VOICE on January 14, 2009
Verified Purchase
I was pleasantly surprised when my Petri Dishes with Agar and Swabs-Science Fair Project Kit arrived 5 business days after ordering it. It had shipped immediately via UPS and arrived carefully packaged in packing peanuts.

The kit included:
-20 plastic Petri dishes
-20 sterile swabs
-2 (200 ml) bottles of nutrient agar
-Complete instructions on how to do a Science Fair project, how to get the agar prepared and into the plates and a handout on Science Fair display design. VERY complete, very good information.

This is easily the least expensive, most complete set for microbiology experiments I've seen. Just get yourself some distilled water (needed for capturing cultures of bacteria on the swabs) and a microscope if you like, and you'll be 'growing germs' as outlined in the handouts in no time!

NOTE: Do be careful when heating up the agar in the microwave. If you heat it too quickly you will end up with chunky (non melting) agar. Melt it at the lowest setting on the microwave in 30 second increments, swishing it around each time. Be sure to open the cap slightly before heating.

I tried both the hot water bath method of heating (takes forever) and the microwave. I was saddened to make this mistake with the first bottle of agar, but the second batch came out perfect. Take it slow, and all will be well.
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We bought this product for my son's third grade science fair project. They worked very well, we microwaved the agar and poured it into the dishes. After they cooled and gelled, we swabbed different places around the house and stored the dishes in zip lock bags. A couple of days later we had bacteria growing. I would recommend this product, directions were easy to follow and experiment worked.
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We need petri dishes for a 6th grade science fair project. This was the only set that had enough petri dishes for our needs. The agar solution was fine. Directions were easy to understand and everything worked as expected.
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I ordered this kit as a fun project to do with my kids, but I ended up having more fun with it than they did! It is very easy to use, and the seller sent detailed instructions on how to use it. It was relatively quick to set up. Here are the high points and low points of the kit:

- The agar really is kind of hard to melt. It took about 4 full minutes on 50% power to get it melted sufficiently. It gets a bit foamy if you shake it too hard, which leads to bubbles in your petri dishes. Just be sure to let it sit for a few moments before pouring it. It's also very HOT when it comes out, so be prepared for that.

- After you inoculate your petri dishes with sample swabs, definitely put them into zip bags and close them up. Use two bags if possible, because the SMELL of the bacterial colonies is really bad after they start growing. Some of my cultures began growing within 24 hours, and the closet where I had stored the bags smelled like an outdoor garbage can in the middle of summer. It was gag-inducing!

Just a little tip: If you really want to see some major bacterial cultures, try these places: kitchen sponges or wash cloths; inside the jets in your whirlpool tub; inside your washing machine; shower floors; remote controls; keyboards; computer mouses.
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This kit was great. It arrived on time and intact. The Agar bottles were even came in a Ziploc bag in case they leaked (which they did not). It had very clear instructions and great ideas for presenting your experiment in a science fair exhibit. Preparing the plates was a breeze. When you get the agar it is about the consistency of Jell-O. Heating it up turns it into a liquid so you can pour it into the dishes. I heated them up in a hot water bath as opposed to a microwave and it the agar came out perfect. Flollow the very detailed directions and you will be fine. The kids had fun collecting the samples using the included sterile swabs. Don't swab too hard on the agar though. As long as the swab is contacting the agar you are transferring the sample. If you do it too hard you will gouge the agar and it could come out (that happened with one of our plates). The only other things you need is distlled water which is available in any grocery store and bleach to kill the bacteria in the plates when you are done with the experiment.

A day after swabbing the plates bacteria was growing. You are supposed to keep the plates in a plastic bag to keep the agar from drying out. And man.... when you open those bags, to let them breathe for a few minutes each day, the stink that comes out is nauseating. It is great. The bacteria/mold is growing like crazy.

This is for a fifth grade science fair and my son, who is in second grade, wants to do this when he is old enough for the science fair. I 100% reccomend this product and the seller, Science Stuff, and I will buy it again.
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We did 9 of the 11 dishes over a week. We got bacteria but not what we intended. We always brushed a zig zag pattern on the agar so we could tell if it was our bacteria or airborn contaminents. We had dishes at 70f and 90f, neither produced the desired results. We did two at -9f then brought them up to room temperature, still none of our cultures grew. We heated the agar for a long period of time but still got some small clumps, most of it was smooth. Heated at a low microwave setting, swishing about every 5 minutes. We did this for 20-25 minutes.

Packaging, product, directions, etc. were all there, nice kit and delivered very quickly, just no results.
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