OCR Level 1/2 GCSE (9 1) In Chemistry B

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OCR Level 1/2 GCSE (9–1) in Chemistry B(Twenty First Century Science) (J258)SpecificationVersion 1: First assessment 2018DraftThis draft qualification has not yet been accredited by Ofqual. It is published to enable teachers tohave early sight of our proposed approach to GCSE (9–1) in Chemistry B. Further changes may berequired and no assurance can be given at this time that the proposed qualification will be madeavailable in its current form, or that it will be accredited in time for first teaching in 2016 and firstaward in 2018. OCR 2015D10006/08GCSE (9–1) in Chemistry B (Twenty First Century Science)QN Awaiting Accreditation

Contents31a.1b.1c.1d.3456The specification overview2a.2b.2c.2d.32781074Chemistry B (Twenty First Century Science) 75Forms of assessmentAssessment objectives (AO)TiersAssessment availabilityRetaking the qualificationAssessment of extended responseSynoptic assessmentCalculating qualification results7576777777777778Admin: what you need to Special considerationExternal assessment arrangementsResults and certificatesPost-results .5h.5i.828282838485868788Grade descriptorsOverlap with other qualificationsAccessibilityUnits in scienceMathematical skillsMathematical skills requirementThe Periodic Table of elementsHealth and safetyPractical activities/skillsD57OCR’s GCSE (9–1) in Chemistry B (Twenty First Century Science) (J258)Content of GCSE (9–1) in Chemistry B (Twenty First Century Science) (J258)Content of chapters C1 to C7Prior knowledge, learning and progressionAssessment of GCSE (9–1) in3a.3b.3c.3d.3e.3f.3g.3h.4Why choose an OCR qualification?Why choose an OCR GCSE (9–1) in Chemistry B (Twenty First Century Science)?What are the key features of this specification?How do I find out more information?ft2Why choose an OCR GCSE (9–1) in Chemistry B (Twenty First CenturyScience)?ra1 OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science)

1 Why choose an OCR GCSE (9–1) inChemistry B (Twenty First CenturyScience)?1a. Why choose an OCR qualification?We provide a range of support servicesdesigned to help you at every stage, frompreparation through to the delivery of ourspecifications. This includes: A wide range of high-quality creativeresources including:oDelivery GuidesoTransition GuidesoTopic Exploration PacksoLesson Elementso and much more.ftChoose OCR and you’ve got the reassurancethat you’re working with one of the UK’sleading exam boards. Our new OCR GCSE(9–1) in Chemistry B (Twenty First CenturyScience) course has been developed inconsultation with teachers, employers andHigher Education to provide learners with aqualification that’s relevant to them andmeets their needs. Access to subject specialists to supportyou through the transition andthroughout the lifetime of thespecification. CPD/Training for teachers includingface-to-face events to introduce thequalifications and prepare you for firstteaching. Active Results – our free resultsanalysis service to help you review theperformance of individual learners orwhole schools. ExamCreator – our new online pastpapers service that enables you to buildyour own test papers from past OCRexam questions.raWe’re part of the Cambridge AssessmentGroup, Europe’s largest assessment agencyand a department of the University ofCambridge. Cambridge Assessment plays aleading role in developing and deliveringassessments throughout the world, operatingin over 150 countries.DWe work with a range of education providers,including schools, colleges, workplaces andother institutions in both the public andprivate sectors. Over 13,000 centres chooseour A Levels, GCSEs and vocationalqualifications including Cambridge Nationals,Cambridge Technicals and CambridgeProgression.Our SpecificationsWe believe in developing specifications thathelp you bring the subject to life and inspireyour learners to achieve more.We’ve created teacher-friendly specificationsbased on extensive research andengagement with the teaching community.They’re designed to be straightforward andaccessible so that you can tailor the deliveryof the course to suit your needs. We aim toencourage learners to become responsiblefor their own learning, confident in discussingideas, innovative and engaged. OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science)All GCSE (9–1) qualifications offered by OCRare accredited by Ofqual, the Regulator forqualifications offered in England. Theaccreditation number for OCR’s GCSE (9–1)in Chemistry B (Twenty First CenturyScience) is QNXXXXXX3

1b. Why choose an OCR GCSE (9–1) in Chemistry B (Twenty FirstCentury Science)?We appreciate that one size doesn’t fit all sowe offer two suites of qualifications in eachscience:Chemistry A – Provides a flexible approachto teaching. The specification is divided intotopics, each covering different key conceptsof chemistry. Teaching of practical skills isintegrated with the theoretical topics and theyare assessed through the written papers.ftChemistry B – Learners study chemistryusing a narrative-based approach. Ideas areintroduced within relevant and interestingsettings which help learners to anchor theirconceptual knowledge of the range ofchemical topics required at GCSE level.Practical skills are embedded within thespecification and learners are expected tocarry out practical work in preparation for awritten examination that will specifically testthese skills.University of York Science Education Group(UYSEG) in conjunction with subject andteaching experts. Together we have aimed toproduce a specification with up to daterelevant content accompanied by a narrativeto give context and an idea of the breath ofteaching required. Our new GCSE (9–1) inChemistry B (Twenty First Century Science)qualification builds on our existing popularcourse. We have based the development ofour GCSE sciences on an understanding ofwhat works well in centres large and small.We have undertaken a significant amount ofconsultation through our science forums(which include representatives from learnedsocieties, HE, teaching and industry) andthrough focus groups with teachers.raThe content is clear and logically laid out forboth existing centres and those new to OCR,with assessment models that arestraightforward to administer. We haveworked closely with teachers to provide highquality support materials to guide you throughthe new qualifications.Chemistry B (Twenty First Century Science)specifications have been developed with theAims and learning outcomesThe Twenty First Century Science suite will:develop scientific knowledge andconceptual understanding through thespecific disciplines of biology, chemistryand physics develop understanding of the nature,processes and methods of science,through different types of scientificenquiries that help them to answerscientific questions about the worldaround themD 4 develop and learn to applyobservational, practical, modelling,enquiry and problem-solving skills, bothin the laboratory, in the field and inother learning environments develop their ability to evaluate claimsbased on science through criticalanalysis of the methodology, evidenceand conclusions, both qualitatively andquantitatively. OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science)

1c. What are the key features of this specification?Building on research, and on the principles ofBeyond 2000, the Twenty First CenturyScience suite was originally developed by theUniversity of York Science Education Group(UYSEG), the Nuffield Foundation and OCR.The 2016 suite continues to recognise thediversity of interests and future intentions ofthe learner population who take a sciencequalification at GCSE level. Thespecifications will prepare learners forprogression to further study of science, whilstat the same time offering an engaging andsatisfying course for those who choose not tostudy academic science further.science that are of value and interest toall develop learners’ abilities to evaluateknowledge claims critically, by lookingat the nature, quality and extent of theevidence, and at the arguments thatlink evidence to conclusions develop learners’ understanding of theconcepts and models that scientists useto explain natural phenomena develop learners’ ability to plan andcarry out practical investigations andtheir understanding of the role ofexperimental work in developingscientific explanations. ftThe Twenty First Century Science suite will:take opportunities to link science toissues relevant to all learners ascitizens, and to the cultural aspects ofraTeacher supportThe extensive support offered alongside thisspecification includes:Delivery guides – providinginformation on assessed content, theassociated conceptual developmentand contextual approaches to delivery Transition guides – identifying thelevels of demand and progression fordifferent key stages for a particulartopic and going on to provide links tohigh quality resources and ‘checkpointtasks’ to assist teachers in identifyinglearners ‘ready for progression’D Lesson elements – written by experts,providing all the materials necessary todeliver creative classroom activities Active Results (see Section 1a) ExamCreator (see Section 1a). OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science) Mock examinations service – a freeservice offering a mock question paperand mark scheme (downloadable froma secure location).Along with: Subject Specialists within the OCRscience team to help with coursequeries Teacher training Science Spotlight (our termlynewsletter) OCR Science community Practical Skills Handbook Maths Skills Handbook.5

1d. How do I find out more information?Whether new to our specifications, orcontinuing on from our legacy offerings, youcan find more information on our webpagesat www.ocr.org.ukWant to find out more?Visit our subject pages to find out more aboutthe assessment package and resourcesavailable to support your teaching. Thescience team also release a termly newsletterScience Spotlight (despatched to centres andavailable from our subject pages).ScienceGCSE@ocr.org.uk, 01223 553998You can contact the Science SubjectSpecialists:Join our Science community:http://social.ocr.org.uk/Check what CPD events are available:www.cpdhub.ocr.org.ukDraftFollow us on Twitter: @ocr science6 OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science)

2 The specification overview2a. OCR’s GCSE (9–1) in Chemistry B (Twenty First CenturyScience) (J258)Learners are entered for either Foundation tier (components 01 and 02) or Higher tier(components 03 and 04) to be awarded the OCR GCSE (9–1) in Chemistry B (Twenty FirstCentury Science).Content OverviewAssessment OverviewFoundation tier, grades 5 to 1Breadth in chemistryContent is split into seven teaching chapters:50%of totalGCSEft Chapter C1: Air and waterChapter C2: Chemical patternsChapter C3: Chemicals of the naturalsenvironmentChapter C4: Material choicesChapter C5: Chemical analysisChapter C6: Making useful chemicalsChapter C7: Ideas about Science90 marks1 hour 45 minutesWritten paperDepth in chemistryra J258/01Both papers assess content from all sevenchapters.J258/0290 marks1 hour 45 minutesWritten paper50%of totalGCSEDHigher tier, grades 9 to 4Content is split into seven teaching chapters: Chapter C1: Air and waterChapter C2: Chemical patternsChapter C3: Chemicals of the naturalsenvironmentChapter C4: Material choicesChapter C5: Chemical analysisChapter C6: Making useful chemicalsChapter C7: Ideas about ScienceBoth papers assess content from all sevenchapters. OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science)Breadth in chemistryJ258/0390 marks1 hour 45 minutesWritten paper50%of totalGCSEDepth in chemistryJ258/0490 marks1 hour 45 minutesWritten paper50%of totalGCSE7

2b. Content of GCSE (9–1) in Chemistry B (Twenty First CenturyScience) (J258)Layout of specification contentThe specification content is divided intoseven chapters. The first six chaptersdescribe the science content to be taught andassessed. The final chapter describes theIdeas about Science that should be taught,and will be assessed, in contexts from any ofthe preceding chapters. The Ideas aboutScience cover the requirements of WorkingScientifically.Within each chapter:ideas are relevant to learners living in thetwenty first century and why it is desirable forlearners to understand them.Following the overview is a summary of theknowledge and understanding that learnersshould have gained from study at Key Stages1 to 3. Some of these ideas are repeated inthe content of the specification and while thismaterial need not be retaught, it can bedrawn upon to develop ideas at GCSE 9–1).ftLearning at GCSE (9–1) is described in thetables that follows.An overview summarises the science ideasincluded in the chapter, explaining why theseTeaching and learningnarrativeLinked learningopportunitiesThe assessable learningoutcomes set out the level ofknowledge and understandingthat learners are expected todemonstrate. The statementsgive guidance on the breadthand depth of learning.Emboldened statements willonly be assessed in HigherTiers papers.The linked learningopportunities suggestways to developIdeas about Scienceand practical skills incontext, and alsohighlight links toideas in otherchapters.Note, however, thatIdeas about Scienceand practical skillsmay be taught, andcan be assessed, inany context.DraThe teaching and learningnarrative summarises thescience story, includingrelevant Ideas about Scienceto provide contexts for theassessable learning outcomes.Assessable learningoutcomes Advisory notes clarify thedepth of cover required.The Assessment Objectives in Section 3bmake clear the range of ways in whichlearners will be required to demonstrate theirknowledge and understanding in theassessments, and the Sample AssessmentMaterials (provided on the OCR website atwww.ocr.org.uk) provide examples.8 OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science)

A summary of the content for the GCSE (9–1) Chemistry B (Twenty First Century Science) course is as follows:Chapter C3: Chemicals of the naturalenvironmentChapter C2: Chemical patternsC1.1 How has the Earth’s atmosphere changedover time, and why?C1.2 Why are there temperatures changes inchemical reactions?C1.3 What is the evidence for climate change,why is it occurring?C1.4 How can scientists help improve the supplyof potable water?C2.1 How have our ideas about atoms developedover time?C2.2 What does the Periodic Table tell us aboutthe elements?C2.3 How do metals and non-metals combine toform compound?C2.4 How are equations used to representchemical reactions?C2.5 What are the properties of transition metals?C3.1 How are the atoms held together in a metal?C3.2 How are metals with different reactivitiesextracted?C3.3 What are electrolytes and what happensduring electrolysis?C3.4 Why is crude oil important as a source ofnew materials?Chapter C4: Material choicesChapter C5: Chemical analysisChapter C6: Making useful chemicalsC4.1 How is data used to choose a material for aparticular use?C4.2 What are the different types of polymers?C4.3 How do bonding and structure affectproperties of materials?C4.4 Why are nanoparticles so useful?C4.5 What happens to products at the end oftheir useful life?C5.1 How are chemicals separated and tested forpurity?C5.2 How do chemists find the composition ofunknown samples?C5.3 How are the amounts of substances inreactions calculated?C5.4 How are the amounts of chemicals insolution measured?ftChapter C1: Air and waterraC6.1 What useful products can be made fromacids?C6.2 How do chemists control the rate ofreactions?C6.3 What factors affect the yield of chemicalreactions?C6.4 How are chemicals made on an industrialscale?IaS1IaS2IaS3IaS4DChapter C7: Ideas about ScienceWhat needs to be considered when investigating a phenomenon scientifically?What conclusions can we make from data?How are scientific explanations developed?How do science and technology impact society? OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science)9

2c. Content of chapters C1 to C7Chapter C1: Air and waterOverviewThe quality of our air and water is a majorworld concern. Chemists monitor our air andwater, and work to minimise the impact ofhuman activities on their quality.As a development of ideas about burningfuels, topic C1.3 considers bonding in smallmolecules and temperature changes inchemical reactions.Finally, topic C1.4 explores the need forincreasing the amount of potable waterworldwide, and techniques for obtainingpotable water from ground, waste and saltwater.raftIn topic C1.1, the context of changes in theEarth’s atmosphere is used to explore theparticle model and its limitations whenexplaining changes of state, and theprinciples of balancing equations forcombustion reactions. Topic C1.2 exploresthe evidence for climate change, asking whyit might be occurring and how serious athreat it is. Learners consider environmentaland health consequences of some airpollutants and climate change, and learn howscientists are helping to provide options forimproving air quality and combatting globalwarming.Learning about air and water before GCSE (9–1)From study at Key Stages 1 to 3 learnersshould: Dbe able to explain the properties ofthe different states of matter (solid,liquid and gas) in terms of theparticle model, including gaspressureappreciate the differences betweenatoms, elements and compoundsbe familiar with the use of chemicalsymbols and formulae for elementsand compoundsknow about conservation of mass,changes of state and chemical reactionsbe able to explain changes of statein terms of the particle modelknow that there are energy changeson changes of state (qualitative)know about exothermic andendothermic chemical reactions(qualitative)understand the carbon cycleknow the composition of the Earth’satmosphere todayknow about the production of carbondioxide by human activity and itsimpact on climate.TieringStatements shown in bold type will only betested in the Higher tier papers.10All other statements will be assessed in bothFoundation and Higher tier papers. OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science)

Learning about air and water at GCSE (9–1)C1.1 How has the Earth’s atmosphere changed over time, and why?Teaching and learning narrativeftThe Earth, its atmosphere and its oceans are made upfrom elements and compounds in different states. Theparticle can be used to describe the states of thesesubstances and what happens to the particles whenthey change state. The particle model can berepresented in different ways, but these are limitedbecause they do not accurately represent the scale orbehaviour of actual particles, they assume that particlesare inelastic spheres, and they do not fully take intoaccount the different interactions between particles.The formation of our early atmosphere and oceans, andthe state changes involved in the water cycle, can bedescribed using the particle model.Assessable learning outcomesLearners will be required to:1. recall and explain the main features of the particlemodel in terms of the states of matter and changeof state, distinguishing between physical andchemical changes and recognise that the particlesthemselves do not have the same properties as thebulk substancesra2. explain the limitations of the particle model inrelation to changes of state when particles arerepresented by inelastic spheres3. use ideas about energy transfers and the relativestrength of forces between particles to explain thedifferent temperatures at which changes of stateoccur OCR 2015GCSE (9–1) in Chemistry B (Twenty First Century Science)Practical work: measuretemperatureagainst time andplot a cooling curvefor stearic acid orheating curve foriceIdeas about Science: use the particlemodel to explainstate changes(IaS3)4. use data to predict states of substances undergiven conditionsDExplanations about ho

2a. OCR’s GCSE (9–1) in Chemistry B (Twenty First Century Science) (J258) 7 2b. Content of GCSE (9–1) in Chemistry B (Twenty First Century Science) (J258) 8 2c. Content of chapters C1 to C7 10 2d. Prior knowledge, learning and progression 74 3 Assessment of GCSE (9–1

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