100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
GCSE CHEMISTRY 8462/1H Paper 1 Higher Tier Mark scheme June 2020 $13.49
Add to cart

Exam (elaborations)

GCSE CHEMISTRY 8462/1H Paper 1 Higher Tier Mark scheme June 2020

 19 views  0 purchase
  • Course
  • Institution

GCSE CHEMISTRY 8462/1H Paper 1 Higher Tier Mark scheme June 2020 Version: 1.0 Final Mark Scheme *206G8462/1H/MS* Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questi...

[Show more]

Preview 4 out of 35  pages

  • March 25, 2022
  • 35
  • 2021/2022
  • Exam (elaborations)
  • Questions & answers
avatar-seller
GCSE
CHEMISTRY
8462/1H
Paper 1 Higher Tier
Mark scheme
June 2020
Version: 1.0 Final Mark Scheme




*206G8462/1H/MS*

,Mark schemes are prepared by the Lead Assessment Writer and considered, together with
the relevant questions, by a panel of subject teachers. This mark scheme includes any
amendments made at the standardisation events which all associates participate in and is
the scheme which was used by them in this examination. The standardisation process
ensures that the mark scheme covers the students’ responses to questions and that every
associate understands and applies it in the same correct way.
As preparation for standardisation each associate analyses a number of students’ scripts.
Alternative answers not already covered by the mark scheme are discussed and legislated
for. If, after the standardisation process, associates encounter unusual answers which have
not been raised they are required to refer these to the Lead Examiner.

It must be stressed that a mark scheme is a working document, in many cases further
developed and expanded on the basis of students’ reactions to a particular paper.
Assumptions about future mark schemes on the basis of one year’s document should be
avoided; whilst the guiding principles of assessment remain constant, details will change,
depending on the content of a particular examination paper.


Further copies of this mark scheme are available from aqa.org.uk

,Information to Examiners

1. General

The mark scheme for each question shows:
 the marks available for each part of the question
 the total marks available for the question
 the typical answer or answers which are expected
 extra information to help the Examiner make his or her judgement
 the Assessment Objectives, level of demand and specification content that each
question is intended to cover.


The extra information is aligned to the appropriate answer in the left-hand part of the
mark scheme and should only be applied to that item in the mark scheme.

At the beginning of a part of a question a reminder may be given, for example: where
consequential marking needs to be considered in a calculation; or the answer may be on
the diagram or at a different place on the script.

In general the right-hand side of the mark scheme is there to provide those extra details
which confuse the main part of the mark scheme yet may be helpful in ensuring that
marking is straightforward and consistent.




2. Emboldening and underlining
2.1 In a list of acceptable answers where more than one mark is available ‘any two from’
is used, with the number of marks emboldened. Each of the following bullet points is
a potential mark.

2.2 A bold and is used to indicate that both parts of the answer are required to award the
mark.

2.3 Alternative answers acceptable for a mark are indicated by the use of or. Different
terms in the mark scheme are shown by a / ; eg allow smooth / free movement.

2.4 Any wording that is underlined is essential for the marking point to be awarded.

, 3. Marking points
3.1 Marking of lists

This applies to questions requiring a set number of responses, but for which students
have provided extra responses. The general principle to be followed in such a
situation is that ‘right + wrong = wrong’.

Each error / contradiction negates each correct response. So, if the number of error /
contradictions equals or exceeds the number of marks available for the question, no
marks can be awarded.

However, responses considered to be neutral (indicated as * in example 1) are not
penalised.

Example 1: What is the pH of an acidic solution?
[1 mark]
Student Response Marks
awarded
1 green, 5 0
2 red*, 5 1
3 red*, 8 0


Example 2: Name two planets in the solar system.
[2 marks]
Student Response Marks awarded
1 Neptune, Mars, 1
Moon
2 Neptune, Sun, 0
Mars, Moon


3.2 Use of chemical symbols / formulae

If a student writes a chemical symbol / formula instead of a required chemical name,
full credit can be given if the symbol / formula is correct and if, in the context of the
question, such action is appropriate.

3.3 Marking procedure for calculations

Marks should be awarded for each stage of the calculation completed correctly, as
students are instructed to show their working. Full marks can, however, be given
for a correct numerical answer, without any working shown.

3.4 Interpretation of ‘it’

Answers using the word ‘it’ should be given credit only if it is clear that the ‘it’ refers
to the correct subject.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller GradeProfessor. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $13.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

53068 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$13.49
  • (0)
Add to cart
Added