Revision Tips Chem

7/18/2019 Revision Tips Chem

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Revising for your

chemistry exams

Revision tips to help you

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ChemistryComplete

for Cambridge IGCSE




Revision tips to help youAt the end of your chemistry course are …

your IGCSE chemistry exams! How exciting!

Revision is the key to exam success.

The five tips that follow will help you shine.

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for Cambridge IGCSE

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ChemistryComplete

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Is there somethingI should be doing?


1 Start revising in good time! Try to start at least eight weeks before the exam.

That way, you can avoid last-minute panic.




2 Begin with a plan!

● A good plan will help you to manage your revision.

●

Work out how many weeks you have before the exam.

● Decide how much time you will spend on chemistry

revision each week, and when.

● Do a timetable, with the topics you plan to cover each week.

● Keep your timetable safe. Check it often to see how you are

doing, and what’s next.

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3 Don’t just sit and read!Your textbook covers your chemistry

syllabus.

Reading it is part of revision ... but only part!

There are many other ways to get material into

your head.




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3 Don’t just sit and read!For example, try some or all of these …

● Make brief notes of the key points – or do a spider map.

Use colours and highlighting for the key points.

● Say what you have learned out loud.

● Use the revision checklist for each chapter.

You can print it from the CD, and tick the items on it.

● Do questions from the back of the chapters in the textbook.

● Do the interactive test for each chapter, on the CD.




3 Don’t just sit and read!For example, a student did this spider map about electrolysis:

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ChemistryComplete

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need s

source of electricity

battery mains

n e e d

s

electrodes tocarry currentinto electrolyte

not inert(get changed)

used for

electroplating purifyingcopper

anode +

cathode –

inert (no change)

graphite (carbon)or platinum

Remember: current is carried by ions in electrolyte and electrons in wires

needs

electrolytes –contain ions free to move

moltenionic compound

metalat cathode

non-metalat anode

used for

solutioncontaining ions

metal or H 2

at cathode(whichever is less reactive)

halogen (only if concentrated halide solution)or oxygen at anode

H + and OH -

from water

Electrolysis

(splitting by electricity)

extracting reactive metals (e.g. Al)

getting chemicals from brine (H

2, Cl

2, NaOH)

electroplatingan object

with metal X X=anodeobject =cathodeelectrolyte =

solution of X compound purifying

copper

impure copper = anode

pure copper = cathodeeletrolyte = e.g. solution ofcopper (II) sulfate




4 Try questions from past exams

● Get practice in answering past exam questions.

This is very important. It will help to give you confidence.

● Your CD contains …

- the past exam questions from the back of the textbook

- a set of past exam questions, with model answers,

to work through

- a set of sample exam papers, based on other past

questions, for you to try against the clock.

● Your teacher can check your answers.

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5 But don’t work too hard!● Brains get tired after a while. We also learn better

at the start and end of a session.

● So it is better to keep each revision session quite

short, rather than going on for hours.

● If you lose concentration, take a break.

Take a walk. Dance around. Sing.

Then back to work, refreshed.

● Revising late the night before an exam is not ideal.

You need rest!

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Finally, it is exam day …You have revised well.

You had a good rest last night.

Your pens, pencils, calculator, ruler and eraser are ready.

Now it is time to show everyone what you can do.

Good luck!

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ChemistryComplete

for Cambridge IGCSE

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Revision Tips Chem