Earth's Atmosphere - GCSE Chemistry

Summary video on the Earth's Atmosphere for GCSE Chemistry. Please note the HUGE mistake I made with my pie chart. There is roughly 20% oxygen in the atmosphere now, 79% nitrogen and 1% other gases (including argon, neon, krypton, carbon dioxide, methane etc). Sorry about this - it's hard working trying to get everything right in one take!

Targeted towards AQA (C1 Topic 7) but suitable for EDEXCEL and other exam boards too.

Please comment if you have any questions, and subscribe if you find the video useful.

[pranksrus]

It's 78% nitrogen today 21% oxygen

[tomburns]

you're videos are brilliant - thanks

[thebestofallworlds]

Before H2O entered the atmosphere, did it exist as H2O or did hydrogen atoms and an oxygen atom combine near the surface to become water(vapor)? Can water exist as a liquid deep enough in the Earth due to pressure?

[unirpb]

thanks for this! am starting revision now!

[rojdatonaydin]

Hello Mr Pidge, I believe we dont need to know the miller experiment, thus it is not in our edexcel revision guides?

[SuperAshraf]

Is this for higher tier or foundation? I'm doing higher so would I be able to use this

[Supernormalbob]

I really need someone to explain to me why the percentage of argon dropped from about 1.6% to 0.9%, seen as its a noble gas it couldn't of reacted

[tomburns]

you're videos are brilliant - thanks