Can i buy bacteria
In response to further edits: If you just want to look at things under the scope, then I suggest you get started by making your own homemade culture plates. If you can get your hands on some Lysogeny Broth LB , agar, and petri dishes then you can make lb plates like a researcher in a real lab minus an autoclave but you could use a pressure cooker.
These are items the public could get, but might be harder to come by. I however will assume that you want to make your own plates from common household ingredients I used to do this a lot as kid, whatever that says about me. Note that you won't probably be able to have perfect sterile technique at your house, but you should try to do what you can.
I highly recommend using pectin as your gelling agent if you can't get your hands on some agar. After that comes plain unflavored gelatin, but I recommend pectin. You can get it at almost any grocery store and my recipe is made assuming that. You can determine how much you want to make, just scale up the ratios.
I'm going to list things as rough volume by volume so you won't need a scale. I recommend starting with vegetable. Let it boil for about 2 min, stirring all the while.
You by no means want it cool down to room temperature, you just want to get it a little below boiling. If you are at 55oC or bellow it's definitely time move on.
You may have noticed this seems an awful lot like canning, and that's because it is. Again you want to be as clean as possible in this step and of course try not to burn yourself on anything. You really probably only have to wait a few hours if you are anxious to get going. You are going to want to store the plates that you are not using in the refrigerator anyway. Also if you made a bunch of plates, let the cool on a counter before you put them in the fridge so that you don't raise the temp of your fridge too much.
Remember the thing about additives? You can play around with adding different amounts and different types of salts, vitamins, food, or other items to see how they effect the cultures you get to grow. All kinds of fun there. First go round, leave them all out. Now you have your own home made culture plates! The above recipe was empirically tested by my childhood, and repeated by my son's. Specify a delivery date Wednesday through Friday, at least seven days after today.
This safe K strain of E. Each culture comes in a test tube on agar media. These slant cultures are made with 5ml of agar that is rotated diagonally to provide the maximum surface area for the bacteria culture growth. The culture can be transferred with an inoculating needle. Each culture provides sufficient bacteria to streak petri dishes, enough for a classroom of 30 students.
Live cultures can be difficult to sustain. The culture will come with care instructions, but plan to use it within days of arrival for best results. This item cannot be returned. Label the bottom of your cultured petri dish with the date and location of the bacteria sample. Good science fair projects answer a question. Bacteria Growing Science Fair Project Ideas: How effective are different types of household cleaners against bacteria in the kitchen or bathroom?
Try different brands. Do some natural substances like garlic and tea tree oil have antibacterial effects? Which household surface contains the most germs bacteria? Swab the kitchen sink, remote control, door knobs, etc. Find out with with this science experiment. Learn the basics of growing bacteria, including safety. Plus, make your own yogurt using "good" bacteria.
Learn More. What is this? We want this item to be alive when you get it! Moderators: kgudger , MadelineB , Moderators. Post by alphaone » Tue Nov 19, am. Post by Natilee12 » Tue Nov 19, am. Post by elisenguyenle » Tue Nov 19, pm.
Post by alphaone » Thu Nov 21, am. Post by alphaone » Tue Dec 03, am. Post by alphaone » Sat Jan 04, pm. Post by MadelineB » Sun Jan 05, am. Menu Project Ideas.
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