Bacteria Science Kit Petri Dishes with Agar and Swabs | Top Science Fair Project Bacteria Growing Kit | Prepoured LB-Agar Plates and Cotton Swabs | STEM for Kids Aged 6 7 8 9 10 Girls Boys Gifts

I bought a testing kit for some experiments at home. The package arrived as described and the petri dishes were triple shrink wrapped, which was a nice touch. However, I encountered a problem when the agar started melting after only 18 hours of inoculation. I had placed the dishes upside down in a consistent 82° environment, but nothing could grow because after 36 hours, everything had melted. Updated: After 52 hours, I have some expected bacterial growth. A lot of the liquid was moisture buildup and NOT AGAR MELTING. I would recommend this kit!

We had a blast using these for our science lesson

Perfect

This is a zero. The order was later than stated. The package was a little damaged but had obviously been opened. The agar plates were not sealed, they were in a ziplock bag. Some were broken. Some had bacteria growing on them. None of the other equipment was in the box. Totally unusable and actually potentially hazardous since the bacteria was of unknown origin. I had placed two orders for this kit. The second order arrived on time and was perfect.

I got these for some classes on hand hygiene and cleaning. We cultured hands before and after handwashing as well as surfaces around the school. I created a makeshift incubator out of an old aquarium, aluminum foil, and an old incandescent 40 watt bulb, covered them with a towel so they were in the dark, and monitored the temperature with a digital thermometer to keep it between 89-98.6 degrees F. I let them grow out for 4.5 days and then we observed the results. I don't know that you have to incubate them, but I wanted to make sure I got good growth in a relatively short amount of time. My complaint is with the sterile cotton swabs. They are really short and small, which makes it hard to maintain sterile technique collecting samples and inocculating plates. We ended up buying a box of longer sterile swabs rather than using the tiny ones. I think you could get by with the short ones, but I used these with ages 7-12 with varying dexterity, so I wanted more margin for error.

These came in perfect for me. The agar plates were vacuum sealed inside the box. This is the cheapest kit that comes with the most supplies that I found

my kids had an absolute blast using these to grow bacteria at our school. The quality was great and they were super easy to use. They felt durable and they fit well in our storage cabinet. Extremely functional and fun for the kids.

Most of the plates came cracked