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    What People Are Saying

    Excellent product
  • Katherine
  • 12/23/2016
  • This set of petri dishes is so convenient. When I homeschooled my first child, I tried to used other containers in place of petri dishes. It was such a hassle trying to get them clean enough. I thought I would try these for the second child, and I'm glad I did. These are sterile to start with and that makes such a difference when it comes to bacteria labs. They are also very convenient to throw away if you don't want to deal with the cleanup that comes with some biological labs. For those labs that aren't too bad, these little dishes clean up nicely and can be reused for other activities that don't require sterile environments, such as holding/containing items for another lab or activity.
    Great value pack
  • Sean
  • 12/19/2016
  • sturdy plastic petri dishes that can be cleaned and reused depending on their original use
    Great Product
  • Christine
  • 11/14/2016
  • These came exactly as described, sealed and work perfectly. The price is wonderful for our homeschooling needs as the kids love growing things in them!

    reward points

    Petri dishes, plastic, 20/pk

    Ages 12+

    Item# BE-PETRI20

    $6.15 in_stock

    Quantity Pricing

    Save big when you purchase at the quantity levels shown below!


    QUANTITY 1 - 9 10+
    PRICE $6.15 $5.54

    In Stock

    Order now to ship Tomorrow. Express shipping is available.
    Product Overview
    Petri dishes are essential for growing bacteria.
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    • Product Details

      Petri dishes, plastic, 20/pk

      A Petri dish is a shallow cylindrical glass or plastic lidded dish used to culture bacteria or small mosses.

      Petri dishes are essential for bacteria science projects! Use them to grow bacteria cultures from around your house or live cultures like bacillus subtillis. This pack comes with 20 sterile disposable 90 x 16 mm plastic petri dishes & covers. They are ready to fill - just add agar.

      One 125 ml bottle of agar will fill about 10 petri dishes. (Just add enough to cover the bottom of the dish.) These plastic ones cannot be heat sterilized. They have been sterilized by deoxidation.

      For some activities using petri dishes, check out our bacteria experiments. Other ideas: swab the inside of your cheek to see what kind of bacteria is in your mouth, study the bacteria that lives in soil or pondwater, and try growing photosynthetic bacteria.

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      48 Review(s)