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Agar, Petri Dishes, and Bacteria
Growing bacteria is easier than you think. Learning about it is even easier with our bacteria growing kit. Use this kit to explore, experiment, and learn which surfaces in your home & on your body might make you say EWW!
Ages 10+
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Petri dishes are essential for growing bacteria.
Ages 8+
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The Science Buddies Bacteria Discovery Kit teaches kids all about bacteria: the good, the bad & the yummy(?!). Although they're everywhere, microbes mostly go unnoticed. Until now! Learn how to safely culture & study common bacteria from your midst.
Ideal for Grades 6+
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The 25 agar plates in this kit drop ship only to Postal Service addresses in the contiguous 48 US states. Please allow 1-week for delivery. An additional $17.50 shipping charge applies to each item. Shipping may be delayed in extreme hot/cold weather
Learn how to differentiate bacteria using the Gram staining method. Identify Gram-positive bacteria & Gram-negative bacteria with this hands-on, top-rated Gram stain kit!
Ages 12+
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This item only ships Economy or UPS to a street address in the 50 US states.
This Elementary Coronavirus Education Kit is an excellent educational tool to use in the classroom, at home, at work, or at community events. Conduct 6 hands-on activities to better understand virus transmission & response!
Grades 2+
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It's often said that one of the best ways to prevent the spread of illness is washing hands with warm water and soap. Use this hand washing experiment kit to test & discover the importance of hand washing for yourself!
Ages 10+
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This sterile liquid nutrient 125 ml agar comes ready to use & with enough agar to cover about ten 100 mm petri dishes. Pour it into a petri dish, swab any surface, and watch bacteria grow in a safe, memorable, and hands-on way!
Ages 10+
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You know garlic stops vampires, but have you also heard that it slows bacteria growth? Find out if it's true with the Neutralizing Bacteria Kit. Students test silver & gold, UV light, acne treatment, and more to try to kill a safe E. coli sample.
Ideal for Grades 6+
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The 15 agar plates in this kit drop ship only to Postal Service addresses in the contiguous 48 US states. Please allow 1-week for delivery. An additional $11.50 shipping charge applies to each item. Shipping may be delayed in extreme hot/cold weather
This high-quality borosilicate glass petri dish is designed for repeated sterilization and reuse.
Ages 8+
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A 20-pack of polystrene Petri dishes with lids that measure 55 mm x 15 mm. These culture plates are disposable and not autoclavable.
Ages 8+
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Study Escherichia coli Bacteria (E. coli) with this incredible live culture! This safe strain of E. coli is commonly found in your intestine and is not the kind that causes food poisoning. Arrives in a freeze-dried pellet.
Ages 14+
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This item only ships to a street address in the 50 US states.
This inoculating needle has a plastic handle with nichrome wire loop to transfer bacteria from a culture to a petri dish.
Ages 11+
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This convenient set of antibiotic sensitivity discs contains two paper discs of four different antibiotics (8 discs total): Penicillin 10 units, Ampicillin 10 mcg, Neomycin 30 mcg, and Erythromycin 15 mcg.
Ages 12+
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Investigate the world of bacteria that's all around us with this introductory kit ideal for teaching elementary kids about bacteria.
Ages 7+
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Use sterile sensitivity discs to test a substance's effect on bacteria growth or as a control. Which household cleaners are best at inhibiting bacteria growth? Find out with this vial of 50 sterile sensitivity disks.
Ages 12+
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This is the powder form of nutrient agar. Add water and sterilize for a general purpose nutrient agar base. This bottle makes 250 ml of nutrient agar—enough to cover about 20 petri dishes.
Ages 12+
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Add water to this dehydrated nutrient agar powder to see a media grow bacteria. This 100 g bottle makes 3 liters of a nutrient sugar agar mixture - enough to cover about 250 petri dishes!
Ages 12+
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Staphylococcus epidermidis is a non-pathogenic bacterium that is part of common human skin and mucous membrane flora.
Ages 14+
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This item only ships to a street address in the 50 US states.
Disposable 90 x 15 mm dishes & covers.
Ages 8+
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Use this pencil to mark glassware when doing science experiments.
Ages 8+
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This sterile pack contains two cotton tipped applicators with wooden sticks. These applicators are...
Ages 8+
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This rigid clear polystyrene culture plate with 24 flat-bottom wells is ideal for microchemistry experiments.
Ages 8+
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Use Neomycin antibiotic sensitivity disks to test the effect of a particular antibiotic on different bacteria cultures. Contains 50 disks.
Ages 12+
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This 125 ml bottle of sterile liquid tryptic soy agar is ready to use and perfect for growing bacteria with complex nutrient requirements. Simply warm it, pour it into petri dishes, and inoculate it with bacteria!
Ages 10+
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Use Erythromycin antibiotic sensitivity disks to test the effect of a particular antibiotic on different bacteria cultures. Contains 50 disks.
Ages 12+
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Use Ampicillin antibiotic sensitivity disks to test the effect of a particular antibiotic on different bacteria cultures. Contains 50 disks.
Ages 12+
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Use this antibiotic dispenser to quickly and easily dispense individual disks from the disposable 50 disc vials of antibiotic sensitivity discs.
Ages 12+
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10 g bottle of oleophilic bacteria - made of oil-eating microbes that do exactly what their name indicates: they eat oils! This oil-eating bacteria makes an excellent addition to any oil spill cleanup studies.
Ages 12+
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This prepared slide includes coccus, rod, and spiral bacteria shapes in one smear.
Ages 8+
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Study Bacillus substilis, the intestinal bacteria commonly used in labs, with this live, freeze-dried culture in pellet form.
Ages 13+
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This item only ships to a street address in the 50 US states.
Disposable 60 x 15 mm dishes & covers. These dishes cannot be heated.
Ages 8+
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Use this agar powder with water to create your own pure agar base! (no nutrients added)
Ages 12+
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Use Penicillin antibiotic sensitivity disks to test the effect of a particular antibiotic on different bacteria cultures. Contains 50 disks.
Ages 12+
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These sterile tryptic soy agar prepared plates are ready to use out of the box. Grow bacteria at home or in the classroom with this set of 5 tryptic soy agar plates.
Ages 10+
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This item drop ships only to Postal Service addresses in the contiguous 48 US states. Please allow 1-week for delivery. An additional $5.50 shipping charge applies to each item. Shipping may be delayed in extreme hot or cold weather.
These sterile nutrient agar prepared plates are ready to use out of the box. This set of 5 agar plates can be stored for up to 30 days before using. Start growing bacteria in your classroom or at home!
Ages 10+
In Stock & Ready to Ship
Need It Fast? See Delivery Options In Cart.
This item drop ships only to Postal Service addresses in the contiguous 48 US states. Please allow 1-week for delivery. An additional $5.50 shipping charge applies to each item. Shipping may be delayed in extreme hot or cold weather.
Choose from prepared nutrient agar, agar powder, and petri dishes to grow your own bacteria.
Learn how to use different types of agar to culture bacteria samples. Plus, experiment with antibiotics and antibacterial agents & see how to grow bacteria.
You may be wondering where you can buy petri dishes with agar, or maybe even: "What is agar?” and "How do I use a petri dish?" Good news—you're in the right place. Pick the Biology lab supplies and the prices that are right for you! We provide a variety of reusable and disposable petri dishes, including plastic petri dishes, glass petri dishes, and polystyrene petri dishes. Shop complete kits, prepared agar plates, and a variety of Biology lab equipment & read free project ideas. We can help you create the perfect bacteria experiment for your kids—at home or in the lab.
See our Illustrated Bacteria Project Guide for tips and ideas!
So what is agar? It's a gelatinous medium providing nutrients and a stable controlled environment for bacteria growth. Most bacteria will grow well using nutrient agar, but some more fastidious bacteria prefer tryptic soy agar.
To prepare agar plates, just heat and pour into one of your selected sterile petri dishes. Next, collect bacteria: Swab along any surface to test (your mouth, the bathroom counter, etc.). To culture your microbes, lightly smear the swab in a zig-zag pattern on the surface of the agar plates. Within 1-2 weeks, you should see signs of bacterial growth.
Now you know where to buy petri dishes. But maybe you’re unsure what to add to your cart. We can help with your order!
”We purchased this kit as a fun activity to supplement our regular science program. It came quickly, was high quality, and the kids really enjoyed the experiment.”
—Customer Review (Bacteria Growing Kit)
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