![](https://thescienceteacher.ie/wp-content/uploads/2023/11/20231110_114659-577x1024.jpg)
![](https://thescienceteacher.ie/wp-content/uploads/2023/11/20231110_114635-577x1024.jpg)
![](https://thescienceteacher.ie/wp-content/uploads/2023/11/20231110_114643-577x1024.jpg)
I made up nutrient agar plates for my 3rd years last week. At the start of the microorganisms chapter I gave each student a plate. They divided it into three sections using a sharpie and labelled each section. They then used sterile swaps to swap three surfaces. Students could decided what they wanted to swap. I suggested their hands, phones, door handles…
We incubated the plates and viewed them at the end of the week when we were finishing up the theory. They were HORRIFIED!!
I followed the following method (It worked perfectly for me and grew microbes but everyone has their own way)
- Placed 24g of nutrient agar into two conical flasks.
- I added 500ml of boiling water into each flask, stirring well for a few minutes.
- I placed cotton wool to stopped the flasks and placed both onto a hot plate.
- Continue to stir every couple of minutes to ensure the agar isn’t clumped at the bottom.
- Put on a low heat as it will boil over quickly as it was boiling water that was added.
- I simmered the mixtures for approximately 10 minutes.
- Poured straight into petri dishes.
- Cooled and stored in the fridge.
- This made 24 plates.
Lots of you asked how I made my plates so I hope this helps you out!
![](https://thescienceteacher.ie/wp-content/uploads/2023/11/20231106_094002-577x1024.jpg)
4 Comments
You aгe so awesome! I don’t think Ӏ’ve truly reаd through a single thing like that before.
So nice to discover another реrson with a few ᥙnique thoughts on this subject matter.
Seriоusly.. thanks for starting this up. This ѕite is one thing
that is needeɗ on tһe internet, someone with
a bit of orіginality!
Thank you so much for your lovely comment! I really appreciate you taking the time to write it. I love sharing what I get up to inside the classroom!
Rattling excellent info can be found on site.Blog monry
Your comment is awaiting moderation.
Hi there, I discovered your site by way of Google aat the same time as looking for a reoated topic,
your site got here up, itt appears to be like good.
I’ve bookmarked it in my google bookmarks.
Hello there, just changed into alert to your blog through Google, and found that it’s truly informative.
I am gonna be careful for brussels. I will bee grateful iin case you proceed this in future.
A lot of other peolple shall bee benefited from your writing.
Cheers! https://odessaforum.Biz.ua/
Your comment is awaiting moderation.
Hi there, I discovered your ite by way of Googl
at the same time as lookng for a related topic, your site got here up, it appwars to be like good.
I’ve bookmarked it iin my google bookmarks.
Hello there, just changed into alert to your blog through Google, and found
that it’s trulyy informative. I am gonna bee carreful for brussels.
I will be grateful in case you proceed this in future. A
lot of other peopl shall be benefited from your writing.
Cheers! https://odessaforum.Biz.ua/
ᏔOW just what I wаs seɑrching for. Came hеre by searching for nullify