OCR 21st Century Science Ideas In Context Thread

do we have the same paper for chemistry?? mines called "Bolivian Bonanza"

I have the same one the class read it and we were all like .... :O
I'm sure one of the smarty's in the class said he was going to revise mainly on C4 for it, i'm not too sure :/

The face cream ones just like, placebos & double blinds etc. Our teacher printed off a sheet & was like, oh, what creams would they of tested it against? apparantly, cheap & cheerful creams to olay isn't a valid answer :/

Physics is more with the motion (P4) and waves (p6)

I'm more worrid about the chem tbh, xxxx

do we have the same paper for chemistry?? mines called "Bolivian Bonanza"

aww and i dont have any teacher to help either do you have like any possible questions and asnwers form school you can post cos i'm on gap year
and do you know what section biology covers? b1,2,3,4,5,6?????
THANK GOD I'M NOT DOING PHYSICS :P

Hahaha, you're lucky(:

I'll have a look, they just gave us a sheet of questions he got from another schools website(; 'cos he's hard(; hahah, if you're doing core, its biology 1,2,3, additional is 1,2,3,4,5,6 & triple is 1,2,3,4,5,6,7& pre release :/ xxxx

Thanks sooo much )
erm i got this thing anti-wrinkle cream for ideas in context
the chemistry ideas in context covers c4 and a bit of c5&6 apparently ;p
i dont get which section i should do for the antwiwrinkle cream thing :/

lol haha "hard" teacher :P

Hahahah, thankss) the anti wrinkle creams more to do with the peer review and the blind/ double blind tests with placebo's etc. I think its B3, xxx

Hmm well, I have mine for Additional 21st Century Science?
Biology: Brain, mind and memory
Physics: Forces and rockets
Chemistry: Copper in mobiles etc.

Anyone doing these ones? We can discuss

Yeh, I'm new oh here! Hi! lol i'm resittin this and the core one and have some questions that my teacher gave me on revision day in the hols just recently!
Reply back and let me knw and we can help each other out!

Majid

I have some questions for the Biology and Physics if you want them?
I havent got any chemistry ones, if you have any

Is that for triple sci?

I haven't actually read the Chem one, I'm sorry Just very poorly organised. I'll send you the Biology face cream questions I have and if I make any for physics/chem I'll pass them on too. Good luck!

Please can I have the Additional Science Questions ?
This would be good to revise from..

Thank You

I have some questions for the Biology and Physics if you want them?
I havent got any chemistry ones, if you have any

These are my questions for the article Brain Power - The Frontier Of Medical Research Into Aging

Have A Go At These Aswell!

*Note this article has come from the topic B6 - Brain And Mind *

1.What are the two things that make up the CNS?
2.What does thw word "Peripheral" mean?
3.What is the difference between a nerve and a neuron?
4.Give the names and functions of two types of neurons?
5.Which part of the brain regulates involuntary responses?
6.How does the structure of nerve cells help them carry out their functions?
7.What is the axon?
8.What is a between one neuron and the next called?
9.Draw a diagram and explain the energy change as an impulse moves from one neurone to the next.
10.What does the word "Stimulus" mean?
11.What is an effector?
12.What is a reflex?
13.How do neuron pathways develop?
14.How do humans learn to speak?
15.What is Serotonin?
16.What is Memory?
17.What is the difference between short and long-term memory? (You should know this!)
18.Give one piece of evidence to show short-term and long-term memory are seperate? (You should know this!)
19.How long does short term memory last? (You should know this!)
20.What is long term memory? (You should know this!)
21.What is the effect of not being able to create new short term memories? (You should know this!)
22.What can memory tests do? (You should know this!)
23.What can't memory tests do? (You should know this!)
24.What is a model of memory? (You should know this!)
25.What is meant by working term memory? (You should know this!)
26.What three things help improve your memory?
27.Your brain has billions of neurons. It allows you to learn from experience.
-Explain how you learnt a new skill, e.g. riding a bike Include these key words in your asnwer: Neuron pathway, impulses, repetition.
-Suggest why it's easier to learn some skills at a certain age (You should know all of question 27)

28a. Name four functions of the cortex in the human brain
28b. What methods have scientists used to find this information? (You should know all of question 28)
29.What memory are you using to a) read this sentence and b) remember the words of a song? (You should know all of question 29)
30.Scientists have come up with several models to explain how memory works
a. Describe one of these models
b.Explain why none of the models scientists have come up with so far is an explanation of memory (You should know all of question 30)
31.Why do we forget information? (You should know this)
32.Was Professor Yanker's investigation a "good study"? Why/Why Not? (It's worth knowing this)
33.What correlation did Professor Yanker's team discover? (It's worth knowing this)

*Note all questions i have suggested that you know are only a piece of advice, regarding the article, i'm not in anyway responsible if they don't come up so please don't blame me! You should know it all*

*These questions are also useful if your doing the exam B6,C6,P6 For additional science*

*Knowing these questions will get you an A*

Majid

P4 Questions:
1) Write definitions for:
-Kinetic Energy
-Resultant force
-Momentum
-Friction
-Velocity

2) How does the Gravitational Potential Energy change as the rocket lifts off?

3) How long does it take for the resistance to get to 0?

4) What is the height of the rocket after.. a) 5s b) 15s c)25s?

5)Explain how the thrust changes with time.

6) It takes a lot of fuel to launch a space craft. Explain why very little fuel would be needed once the spacecraft has left the earths atmosphere.

7) When a rocket is travelling in space, there is no air. How does this affect the drag?

8) Calculate the GPE of the rocket 20 seconds after take off

9) Work out the change in momentum at 5 seconds after lift off

10) Draw arrows on the drawing of the rocket to show all the forces in action. (Think about sizes, direction etc)

11) Sketch a speed/time graph for the rocket.

B5

1) Which parts of the body make up the Central nervous system?

2) What is the Peripheral nervous system?

3) What is the sensory memory store?

4) Explain how rehearsal facilitates information transfer from short term memory to long term.

5) Do long term memory and short term work together in the brain?

6) Explain how a neurone is adapted to its function

7) What is serotonin and why is it necessary for survival?

8) What is the gap between neurones called and explain how neurones travel across it.

9) What must be done to increase the reliability of Prof Yanker's conclusion?

10) Explain two ways scientists can study and find out information about the brain.

11) Explain why it is harder for older people to learn new things.

12) What effect does Alzheimers have on memory?

I hope these help guys! I havent been given any for chemistry yet, I'll get those after half-term. If you can answer all these, you'll get an A for sure.

I've Got Chemistry Ones They're:

Copper - Not Just In Mobile Phones

*Note - This Article Comes From C5 - Chemicals Of The Atmosphere!! *

Majid

These are my questions for the article Brain Power - The Frontier Of Medical Research Into Aging

Have A Go At These Aswell!

*Note this article has come from the topic B6 - Brain And Mind *

Majid