Petri Dish - 101 mm (4 in) - 20 pack Large-size Petri dish, great for science fair projects. email to friend
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Used by biologists to culture bacteria and other microbes, these plastic petri dishes provide the perfect home for "growing" your latest science experiment. Nurture a new bacteria for this year's science fair project, and follow in the steps of Dr. Alexander Fleming when he discovered Penicillin in 1929! Recommended for children ages 6 and up.

What's included?

• 20 Pack Petri Dishes that are 101 mm (4") in diameter

How does it work?

Partially fill your Petri dishes with a perfect mixture of nutrients that provide food for microbe growth. Scientists often use hot agar mixed with salts, amino acids and other substances perfect for supporting the particular microbes they wish to study. When the mixture cools, place your tiny cells on top of the surface and watch them multiply. Don’t worry, they take some time to grow!