Revision for final modules

We've now finished C1b - the second Chemistry unit (you've been doing the other one with Mr Britton). The exams for C1a and C1b will be on 28th June, but we'll be doing a second ISA before then. Now is the time to start revising, and the best way to do this is to practice questions.

http://cheneygcsescience.blogspot.com/ has links to the end of section summary and exam-style questions AND answers to these for C1b. C1a questions will appear there shortly. I'll also set these as assignments in Edmodo (see the post below for your group-code if you haven't already signed up) so you can hand in your answers and I can give you feedback.

C1b Chemistry - Section Assessment Task on Edmodo

Go to http://www.cheney.edmodo.com/ - if you haven't already sign up then you will need to, using the code 'ybjoyf'. If you have used Edmodo before then log in, and click 'join' in the 'groups' box on the left hand side, then enter the code.

Chemistry work for Mr Lawrence on Edmodo

Go to http://www.edmodo.com/ and sign up (if you haven't already). Use the group code ybjoyf to join the 10x4 Science group and to find your work for today's lesson.

Why is the Earth like a Scotch Egg?

Click 'comments' and then give your answer - in as much detail as possible (not just 'they both have layers')! Remember to include your name if you choose the 'anonymous' option, which you might have to...

By Wednesday 9th March please.

Revision for your 2nd March modules

This new Blog has Exam-style and Summary questions for each of the sections for B1b and P1b, as well as the end-of-unit practice exams from the textbook and links to Bitesize.

http://cheneygcsescience.blogspot.com

Don't worry about the Chemistry - you'll be doing both Chemistry units in June.

P1b Waves and Universe Revision

The next module exam for Physics (P1b) and Biology (B1b) is on 2nd March.

Here is a link to the BBC Bitesize area for this topic:
http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/radiation/

Here is a useful site for revising the Electromagnetic spectrum, and uses and dangers of each type of wave:
http://www.darvill.clara.net/emag/index.htm

Electromagnetic Waves Summary Questions

Electromagnetic Waves Exam Style Questions

Answers to follow in another post!

P1b The Origins of the Universe

We watched a classic video about the size of the universe called 'Powers of Ten' - I can't find this original version on the web, but here is part of a good quality remake which just does 'zooming out':
POWERS OF TEN... the unimaginable size of our universe

This one does the 'zooming in' from the whole universe to the insides of a proton in the nucleus on a carbon atom in a strand of DNA in the nucleus of a single-celled organism in a drop of water on a blade of grass!
Powers of 10

As well the order of sizes of moons, planets, stars and galaxies, you need to be able to explain what 'red-shift' is, and how the amount of red-shift from galaxies relates to their distance from us, and why this is evidence for the expansion of the entire universe, and therefore for the 'big bang' theory. This video explains this quite nicely:
Hubble's Expanding Universe Red Shifts The Big Bang

But you will probably enjoy this one more:
Sciencerapper


The evidence that led to the 'big bang' theory taking over from the 'steady state' theory was 'cosmic background radiation'. This is explained (with a lot more detail than you need to know) here:
Big Bang Cosmology: Looking Back To The Dawn Of Time

This sheet has the question we did in our lesson on Friday, plus an extra question which involves some research and plotting a graph:
Red shift questions

Here are some extra questions for optional homework - if you want some more practice with this:
Beyond the Earth questions
Big Bang sheet

Answers to all of these to follow in a future post!

B1A Biology Higher Marks Scheme

1.
A hypothesis 1
B survey 4
C ind. variable 3
D observation 2

2.
A FSH 3
B FSH and LH 4
C LH 1
D oestrogen 2

3.
A 2
B 2
C 2
D 2

4.
A 3
B 1
C 3
D 1

5.
A 3
B 2
C 3
D 3

6.
A 1
B 1
C 3
D 3

7.
A 3
B 4
C 3
D 2

8.
A 3
B 4
C 3
D 3

9.
A 3
B 4
C 1
D 1

B1A Biology Foundation Marks Scheme

1.
A Hear 1
B See 4
C Smell 3
D Feel 2

2.
A Leprosy 4
B Limb abnormalities 3
C Morning sickness 2
D Difficulty sleeping 1

3.
A Alcohol 1
B Cannabis 3
C Carbon monoxide 2
D Nicotine 4

4.
A Blinking 2
B Cells in eye 4
C Insect 3
D Muscle in eyelid 1

5.
A 540 3
B 1460 4
C 1500 1
D 2700 2

6.
A 2
B 3
C 4
D 1

7.
A 2
B 3
C 3
D 4

8.
A 3
B 3
C 2
D 1

9.
A 3
B 1
C 3
D 1

Hello there 10x4

We'll be using this web space occasionally over the year to post homework or questions or answers.

Mr Britton and Mr Lawrence will let you know when to look at it.