The science of smog - Kim Preshoff 

You go Kim. I'm so happy that teacher like you still exist.

You could tell this lesson was made by high school teacher because i understood every word of it. Nice job kim

Mrs. Preshoff thanks for your insightful lessons. I Love them!

This was great, Kim! Thank you.

Congratulations Kim!!!! Thank you for your educational influence. You are greatly appreciated🙏🏾

thank you, kim!! this was really great to learn about

Kim: I am a student from Guatemala, who always loves to learn new things. Every TedEd lesson is an impact for me. I really like this short Lessons, they are interesting and very clear. I'm so happy you have done 5 educational videos! I really liked this one! I motivate you to do more videos and keep teaching. So in that way you can motivate more students (yust like me) and educate them!!!! ❤️📚📽

well done kim keep it up

You're the MVP Kim

Pretty cool animation...😘

Love for Kim:❤️❤️❤️❤️❤️ One for every video!

Thank you so much Mrs. Preshoff! Your videos in Ted-ED along with other videos in Ted-ED helped my grades boom more than ever! I also love watching them simply for fun and interest.

Thanks for your efforts, Kim. :)

Kim: thank you for all you do! You are an inspiration to teachers and learners everywhere.

Thank you TedEd and Kim Pershoff and all the all the others who helped in the making of this video.

Thank you Kim for taking the time to share your knowledge with us

Congrats Kim Some1 let her now I hope she does well educating more people

thank you kim for spreading knowledge

Nice stuff Kim and the whole Ted-ED team :). Always glad when I see that you have uploaded a new video

4 years later and this video is still very relevant and impactful. Well done Ms. Preschoff!

Thank you Kim for your hard work !

Way to go Kim!!!

thanks Kim for giving your precious time to us, and teaching us

Thank you Kim for these informative and wonderful lessons! Hope that there will be more from you soon!

Thank you Kim!

Thank you kim for your informative videos.

Dear Kim, Thank you for your devotion to teaching both children and adults about the wonders of science! You are a true hero and inspiration. I wish you all joy and love, and hope that you will continue teaching for many years to come.

Fantastic video, so nice and clear! Thanks for putting it together Kim

Kim ❤️

This is one of the best Ted-Ed lessons I've watched. I want for lessons from you, Kim and you are an amazing teacher.

Congratulations Kim! It's always great to see great videos being made by amazing people like you!

Way to go, Kim! I’m so glad you decided to take your lessons outside the classroom! It’s passionate teachers like you who make people want to learn!

Thanks for the lessons, Kim! Wish we had more passionate teachers like you. Keep up the good work, you are an inspiration to many people, including myself! 💟💟

*WOULD LOVE TO HEAR MORE FROM KIM PRESHOFF ON TED-Ed!*

Thanks for the wonderful video Mrs Kim !!!

almost a year after you posted this, still helpful. thank you Mrs. Preshoff

Very good video! Thank you Kim Preshoff for sharing this with us :) I live in Santiago de Chile, a city historically affected by smog. The city lies in a valley, which makes the problem worse. In the last years, luckily, the cases of extreme pollution have dropped significantly thanks to state policies, but there is still a lot to do.

its morning in my country and someone (Kim Preshoff) just made my day!!

Love you Kim. Thank you for sharing your knowledge with everyone. Appreciation humbly given.

Ms Kim! Great stuff, always loved science.

Thanks Miss Kim

I have a final exam for science and this really helped, thanks mrs. Preshoff.

Thank you all the way from Germany, Kim! I wish I had had a great teacher such as yourself back when I was in school. Keep making the world a better place by continuing to educate - you're marvelous at that!

Kim you make learning about smog so much easier! Thank you!

Thank you kim.

I wanna make a pun on chemistry But it wouldn't get any reactions

Thanks a lot Kim! I was just was watching the crown and it talked a bit about the smog of 1954 in London. You explained it so well! Keep up the good work!

The most complex of events and terms explained in the simplest words!! Thanks Ted-ed and all other lecturers like Mam Kim Preshoff!!

What I learned today: TED-Ed help amplify the lessons of great teachers -Idc what you are thinking-

Pagi Teknik!

Kim"s lessons are great! I love all of your videos so far. keep up great work guys!!!

Ms. Preshoff, I am glad that your gift for passing along concepts and information in interesting manner has been widely enjoyed by the world through Ted-ed. It is obvious that you find educating to be a deep purpose and calling in your life, and I am honoured to benefit from it even though I am half way across the world from you! Wishing you more recognition and acknowledgement all the way from India❤️

Thanks Kim 😊

The way she pronounced Glasgow.

Nice work, Kim, looking forward to seeing more from you!

Thank you Kim, we love learning and we love you! Keep up the good work!

Congrats on your fifth video Kim!

I love her voice!

Nice job, Mrs. Preshoff! Thank you for the clear exposition!

Firstly, thank you Kim. Delighted to know such teachers are still there😊. Secondly, thank you Ted Ed for supporting such initiatives, and making the learnings of these teachers available to us. Thirdly, amazing animation, as always.

Plz make a video on how do cramps occure

IF U CAN I HAVE ANOTHR IDEA FOR A VID: 1) HOW DOES POLYMERISATION OCCURE 2) HOW TO REDUCE POLLUTION

Wow! Thank you Mrs. Preshoff! Hope to see more of her very soon!

Thank you for the video. Bless you the teacher who taught us this. love to all the team who makes these videos possible :)

Smoke + fogg =SMOG

Who on earth dislikes this? Was it because she said Glasgow weird? I don't understand!

A big thank you to Mrs. Preshoff and TED-ED team for such wonderful resources.

Thank you for your precious lessons Kim! Cheers! :)

Hi, generally a good video. However, nitrous oxide (N2O) is not the same as nitric oxide, also know as nitrogen dioxide (NO2 or N2O4 since it exists as a dimer), which is what the real problem is in smog. This is often represented as NOx. These are very different compounds with completely different properties. They are as different as water and hydrogen peroxide. Nitrous oxide, is a colorless, nontoxic gas, in fact it is used as a dental anesthetic. N2O4 is a reddish gas which is highly reactive, corrosive, and toxic. It would also be reasonable to refer to the compounds in smog as "nitrogen oxides", if you prefer. Please correct this.

Best animator

Kim, thank you for spreading your knowledge! I really appreciate your contribution to learning on the internet

Every country needs such passionate teachers like you Kim! Thank you for being one! Love from India!

Last time I was this early, England is my city.

Nice Kim

We need more dedicated educators like you. Thank you, Mrs. Preshoff

Thank you kim that was really helpful and interesting in the same time♥

💟💖Kim Preshoff💕🎀

0:57 sounded like the beep in among us

Well done, Kim! Yet another incredible lesson from you!

Thank you Kim! I wish I had a teacher like yourself growing up but I'm glad you've taught fantastic lessons (now internationally ).

Loved the way she pronounced Glasgow

I'm early let me make a joke USA

I would love more videos like this. Keep the videos coming Kim!

Great work Kim! Thanks for knowledge!

Koffing, use smog attack! From Pokémon!

There's like 4 first comments.

I watched all her videos and all of them are so good. Thanks Kim

This is so important. Thank you, Kim Preshoff. You are amazing. I'm so glad there are teachers like you.

Incredible chanel☺.If you agree with me, give a thumbs up.

1:21 who also thought it was a cow at first? xD

Thanks for educating us kim!

well done Kim, & thanks for the video.

*SMAUG* ... anyone get it?

EARLY HURRRAYYYY

Kim, that video was amazing! Thanks!

thank you kim! We are very much enlightened with your ideas!

What was that pronunciation of Glasgow? It's pronounced Glasgo

I am slightly annoyed at the way she pronounced Edinburgh and Glasgow it's Pronounced (Glas-Goh) and Edinburgh is pronounced (Edin-Bruh) not that difficult. Never even heard them be pronounced that way before.

Thank you Mrs Preshoff for helping us learn and producing such brilliant video content! Also, many thanks to TED for conducting the whole channel!

Thank you Kim, this was an amazing lesson and very important to emphasize even today