Year 12s: what will be the first way you research your future options? >>

19th May 2016 - OCR 21st Century Science C1 C2 C3 Exam

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What do you guys think will be for an A*?

Im guessing higher than most other years, if we are unluck I would say 48; i dont see it going higher, but I may be wrong of course.

Reply 161

Lewisjj

The last question was
Discuss how the production of chlorine has changed over the last 50 years

Reply 162

username2471155

Original post by kennethdcharles

Im guessing higher than most other years, if we are unluck I would say 48; i dont see it going higher, but I may be wrong of course.

I think like 46

Reply 163

LokiiR

guys for question three what two boxes did you tick?
I ticked There is not enough oxygen for complete combustion
and
Too much nitrogen reacts with oxygen blabla
the other one it could have been was
Some carbon particles react with oxygen
but i thought it was way too vague

Reply 164

BULL14

Original post by vadermolt1

More notes you say? MORE NOTES!

Also, bonus P4 mind map I made and some practice 6 mark questions from my teacher. Good luck everyone!

P4 Mindmap.jpg

This is so useful. DO you have something like this 4 P123

Reply 165

kendo9

Original post by LokiiR

guys for question three what two boxes did you tick?
I ticked There is not enough oxygen for complete combustion
and
Too much nitrogen reacts with oxygen blabla
the other one it co byuld have been was
Some carbon particles react with oxygen
but i thought it was way too vague

I believe the second one was some carbon particles react with oxygen.

Reply 166

emmald583

Original post by kennethdcharles

I believe the second one was some carbon particles react with oxygen.

Yes, it was some carbon reacts with oxygen - they wanted you to focus on the idea that some does, but not all, creating the CO and particulates.

Reply 167

ChristianK2000

pretty annoyed acid rain and nanotechnology didn't come up to be honest, focussed my revision on those a lot D: think I did okay though, opinions anyone??