GCSE Chemistry Revision "Life-Cycle Assessment"

[@tawnyop7275]

This was uploaded on Christmas day

[@Matthew-wv8eo]

a hero never sleeps

[@spencerleir9280]

Plot twist - Sean is Father Christmas

[@Julilululululu]

Cheers geoff

[@There-was-nothing-we-could-do]

@@spencerleir9280 Why do I feel like what you said is probably true :|

[@conenine9377]

Not all heroes wear capes.

[@oisinuskempus7280]

they uploaded on Christmas as well

[@aymansakib3225]

This one wears a tie

[@snipbit-1095]

not every day it gets repaid

[@shadowseeker7828]

i agree

[@JorisBohnson52]

I found this extremely useful but seriously, you shouldn’t be uploading on Christmas Day

[@maya2868]

when you know you'll remember the fact that life cycle assessments are biased because you're totally gripped by anything even vaguely scandalous

[@astrixosth9030]

This is actually really interesting, thanks for the concise explanation!

[@ecox9608]

I like the way you process your raw materials 😍

[@Luqa]

Thanks u too

[@mo-fy5wz]

tysm we didn't even get taught this

[@Max-oh9uz]

My man uploaded on christmas

[@SM-mt2ix]

me: watching as many chemistry videos the day before the paper 2 chemistry exam :0

[@gretaams]

Omg me rn !! My paper 2 exam is tomorrow

[@diyagarg747]

I have an exam tomorrow and I couldn't be more thankful for him

[@fahad_ac]

When will the A level videos be made??

[@henryyuill1382]

Has he made any yet? I'm starting Alevel Chem and biology in September 2019 as well as geography

[@idonthaveachannelname6585]

Fahad now

[@lorrinesitha8908]

Merry Christmas everyone 🎄

[@hieveryone1826]

online school check

[@katherinestewart377]

Thank you so much for this! Couldn't find the content I needed anywhere else :)

[@bish009]

Hi, will you be making Physics A-Level videos? I find these GCSE videos really useful, cheers.

[@fayeisgay]

I read another comment from him saying he won’t because he doesn’t teach it so he doesn’t think he’d do well.

[@alisaeed7333]

Got my paper 2 mock exam tomorrow going over the last topic today 😅

[@RobertLatchford]

52 eyebrow raises

[@Freesciencelessons]

That's a lot of eyebrow raises.

[@N01Meow]

🤨

[@sv_gaming5818]

2 hours to go squad where you at

[@joyceadewumi1365]

could you possibly do a manuscript of your videos please? That would be so helpful

[@existinguser7788]

why? just take notes from his videos which has everything in writing as he talks, that's what I do.

[@JorisBohnson52]

Joyce Adewumi that’s a lot of effort for the poor guy

[@lm2236]

so this is 2 years late but next to the save button under the video, there is a button with 3 horizontal circles, if you click that theres an "open transcript" button, there is a transcript there :)

[@davestrider4973]

Quarantineeee squaaaddd

[@LolMan-xg4op]

Solid m8,

[@pheobexo2698]

Thank you sir this helped a lot. 💕

[@fok3624]

Great vid man, helped a lot.

[@thedynamicdiamonds5583]

Up the boys shawn

[@atchek6304]

this was an amazing video but so much to take in and understand so i was baffled for most of it. i still dont even know what life cycle assessment means

[@Ryan-zo9om]

he literally said it at the start.

[@saygzzs5minbiovids213]

life cycle assessment is assessing how making products have an impact on the environment. So when the video is described for plastic and paper bags, you have to gather the information of when those products are made, do they create a toxic chemical during the process of manufacturing? So for paper bag, trees contribute to providing a life for wildlife habitats and contribute to reducing global warming, so removing them will have the opposite effect, when creating these bags. Additionally, so much energy is used to make these plastic and paper bags, and energy is created from mainly fossil fuels, which also contribute to global warming/climate change. So think about: - A lot of energy is used, how does that contribute to negative impacts? - During the process of gaining raw materials, what things are being affected? - Life cycle means like a constant cycle of manufacturing something, and the process of what happens to that product when it is no longer needed (e.g. landfills) keyword LIFE - So basically, as a summary, life cycle assessment is the assessing of all the parts or processes of when somethings is made.

[@antoinette9891]

life cycle assessment is when the lifetime of a product is assessed to see how it impacted the environment

[@jamminermit]

What have you done with all the old playlists? Hope you have had a good Christmas.

[@Freesciencelessons]

Thanks and you too. I've removed them as they were for the old spec. I want people to be able to find the correct video easily and loads of unneeded playlists didn't make any sense. The old videos are still on the channel but they're not in playlists.

[@jamminermit]

Freesciencelessons ok thank you for replying so promptly and I wish you well in the future.

[@faizanfarooq4199]

What is the link to your revision workbook?

[@mohammadjafari4150]

Could efficiency/atom economy be considered as a factor for the usefulness of life cycle assessments Sir?

[@kamkam7964]

That's a good question..

[@samihijazi9389]

@@kamkam7964 indeed

[@malaika-kh]

such a good video

[@chaoticartist1305]

2021 is impending...

[@benjybog8978]

what a hero

[@shadowseeker7828]

sigma chad

[@Ella-mn5dx]

Great video 🤗

[@Ultrasonix3]

0:30 XD 'I thought it was a water truck'

[@hamzah5034]

ez frags

[@Trickstari]

Guess who’s in class right now

[@declanpinto9302]

suiii

[@Dr-Candypuff]

Hi!

[@kaif6733]

Hi!