The Sci Guys: Science at Home - SE2 - EP3: Homemade Petri Dish - Growing Bacteria at Home 

Lets hope its mycelium, shouldnt be a problem

Are you alive?

😭😭😭😭😭

@@winnser6543 it's been 5 years, I already sent flowers

frr

James Collins Sweet!! I hope it turns out well. If your growth medium is turning to liquid at room temperature, then retry your mixture with an extra package of gelatine or reducing the amount of water in your mixture to make a more resilient medium.

Ariel Barton The stuff growing in the samples we grew can be disposed by cleaning it with hot water and dish soap. It's not much different than cleaning your dog's bowl or a dirty dish.

I want to test my water for bacteria. I also have a filter, that also needs testing. Thanks for the video

+MegaMackproductions If you want to culture yeast then I would probably recommend using Agar instead of gelatin. It will give you a material that won't liquefy as easily

Andre Black Scribe Please spare us!! We are but humble RU-vidr's and Scientists.

Welcome

martyandbabe Thanks! We love that you love our videos. That is a great idea! We will see if we can figure out an experiment, if we can't find an experiment we will do a science talk in a new series we are working on.

I home school my 5th grade daughter with the K12 program. There are many experiments listed in their Science program guide, and often times, it would be overwhelming for us to try to do them all. Your channel has been a great resource for us to sometimes watch what happens in a more timely and safer fashion. I did recommend your site to our Idaho K12 school. Maybe you could get a hold of K12 nationally and work out a deal make experiment videos for them (they work with many off site places). I think you guys have something special that could really be beneficial for students out there and profitable for you. Good luck!

martyandbabe Thank you very much!! It's always great to hear that we are helping parents to teach their kids about science and to hopefully get kids excited about science as well. We really appreciate you passing our channel along to your Idaho K12 school, we are hoping in the future to work with an educational group to look at producing videos to help with their curriculum. Also, we will be adding a new series of science talks or lectures about subjects that experiments won't easily explain. If you ever have any suggestions of experiments or topics you would like us to do a video on please feel free to let us know. Thanks again for all the compliments.

Awesome! Will do!

So this agar show it here will work for micology transfers? Nice videos

Clorox wipe the boil first then pour 😝

@@stupidstickmen84 expose to the air is still gonna cause contamination. the only way to really do this with sterile technique is using a pressure cooker and a flow hood or no pour tek, we use this in mycology because we need super sterile conditions to germinate spores and grow mycelium

So did it happen?

@@mr.tap2play338 it got a bit of growth then turned into nasty soupy goop.

Hello, there. I am doing this science project at school for science fair and I'm just asking if it is okay to use dettol (disinfected water) for swabbing the places. Please answer this question. Thanks :P

What do you think the boiling water did

@@streamware7746 and then they stirred it with a wooden spoon though, was that sterilized?

Still need this? Attempt to do a streak plate.

You Can Also Use Pringles Cap To Use It As an Petri Dish

Tracy Lowe You can wash them out with some dish soap and hot water. It's not much different from leaving food in a container for way too long.

I'm surprised no one has answered this. 1 pouch gelatin = 7 grams = 2-1/2 teaspoons.

Please don't tell me you were looking for an IA topic...

not enough agar. i'd use 8g agar for 300ml

This is called a liquid culture. Although typically you need extra nutrients, not just food. (Just like humans can't survive just off calories, each bacteria will typically require some micro/macro nutrients.) There are plenty of variations on different growing mediums for liquid cultures. But you loose the ability to identify the bacteria via the morphology.

violet Boil the water first then add the other ingredients. You can get beef bouillon at any grocery store. Also you don't have to use beef, you could also use chicken bouillon. It would just look a slightly different colour.

violet Just make sure it's low sodium bouillion

The Sci Guys could you use brown sugar???

violet You should be able to replace sugar with brown sugar.

Jessica Espinal pretty sure something should have grown already at least if incubated

+Micheal Craft Just the nutrients.

+The Sci Guys hi um in my petri dish after 5 days I only saw white colony spots and the petri dish was kind of liquid! Is that bad?!

Basically, the bacteria is just liquefying the gelatine

It makes the magic lettuce that grows in your petri dish taste nicer.

+Brylee Cole use really hot water and antibacterial dish soap.

+Brylee Cole use really hot water and antibacterial dish soap.

okay thank you soooo much

Dunk in bleach water. Bleach should kill it all.

MICROBES AT HOME? A REAL CHANCE FOR ABLE PEOPLE TO GET WORLD RECOGNITION. Before anything else care should be taken to stop FECAL DUST forming. Hospital Acquired Infection: Hospitals try hard to kill the microbes in the wards, but give little attention to eliminate the microbe SOURCE, which is the feces residue, left after incomplete wiping (it always is somehow), that through drying and friction it turns out to the lethal FECAL DUST. Have in mind that hospital patients are usually, debilitated old people, or having mobility restriction, unable to wipe properly, particularly, if there are piles or hair. HOME AIR AND FOOD CONTAMINATION: The same process is taken place here. UTI: The difference in UTI is that fecal dust and the contamination microbes come from one’s own fecal residue. Many suggest front to back wiping, because they think that microbe transfer is done only by direct contact. It is a big mistake, as they ignore the transfer through FECAL DUST. “Why no public research health institution does a simple research about the LETHAL FECAL DUST in hospitals? It could save millions of deaths and trillions of $, on hospital function cost, or it is exactly that cost reduction is the reason that it stops them to do it?” ANY BODY CAN DO HIS OWN RESEARCH WORK TO PROVE OR DISPROVE WHAT I AM SAYING AND GET WORLD RECOGNITION!!!

Yes

Maltextrakt, Dextrose, potato flakes

Refrigerate it and maybe you need to add more gelatin.... Sounds like your mixture has too much water

Use agar-agar. It's inexpensive and the microorganisms can't metabolize it.

its because the microorganisms eat the gelatine

Add 8 1/2 tsp gelatin. It's a lot but you'll get better results

Cause clearly that spoon couldn't have been sterile 🙄

it provides nutrients I do believe.

It doesn't necessarily have to be cubes. I believe it was the darkest power that was added last.

Bouillon

Ethan T Not sure what you mean by regular bouillon. Do you mean vegetable?

The Sci Guys Never mind i found out it was chicken

i would say so, it has sugar, only thing i suppose is that the colouring may make the bacterial growth look slightly different. try it!!

@@zirconium2014 use unflavored or remove sugar from recipie. Should work but may give some weird colored bacteria cuz of eyes ;)

+Marko for what?

+Noelia R. At grocery stores. You can also use Chicken Boluim as well. Just make sure it's low sodium.

Aaron Lam Are you asking for the name of the music in our intro?