Nov 01, 2017 gcse science chemistry 91 effect of surface area on rate. You can order aqaapproved textbooks directly from the publishers. See how much you understood about osmosis in the class by taking the test below before the test. The ability to build knowledge in sequence through our unique pods, enables retention and recall when it is most needed. Ccea brings together curriculum, examinations and assessment. Visit the new ccea website for up to date information ccea. Diffusion refers to the process of particles moving from an area of high concentration to one of low concentration. The nook book ebook of the ccea gcse chemistry by nora henry, alyn g. When two gases mix together, the fast randomly moving particles collide, and this slows down their rate of mixing.
Students of this specification study structures, trends and chemical reactions. Presented in a powerpoint format, all of the questions in 6 consecutive ccea papers 20027 have been divided into the ten topics below. Cie igcse notes a chemistry a chemistry gcse, igcse. Simply browse all the topics and study our high quality material. These include a full set of revision notes on each topic. This is our legacy website and will no longer be kept uptodate from monday 20th january 2020. Diffusion is the spreading out of the particles of any substance in solution, or particles of agas, resulting in a net mvoement from an area of higher concentration to an area of lower concentration. With pedagogical content knowledge for 27 gcse igcse subjects, gcsepod make it easy to learn and revise from wherever you are, on any device and is particularly suited to remote learning. Diffusion results in the gradual mixing of materials, and eventually, it forms a homogeneous mixture. Osmosis movement of water molecules, across a partially permeable membrane, from a region of high concentration of water to a low concentration of water molecules it allows plants to take in water through their roots. Visit the new ccea website for up to date information. It cultivates knowledge and understanding of the material world, the nature of science and the scientific process. Diffusion is the random movement of a substance from a region of high concentration to a region of low concentration ie. General chemistrydiffusion and effusion wikibooks, open.
Specification syllabus help pages with links to all chemistry sections for the gcse 91 combined science, and separate gcse 91 chemistry courses. Ccea gcse chemistry 6569 cambridge igcse chemistry 0620 edexcel international gcse chemistry 4ch1 oxford aqa international gcse chemistry 9202 cambridge igcse chemistry 0620 for exams from 2019. Osmosis and plant transport ccea gcse biology single. You dont need to buy approved textbooks in order to teach our specifications. The movement of many substances into and out of cells occurs by diffusion. Chemistry helps us make sense of the world around us and connects to the main social, ethical and cultural issues affecting our lives today. Note also that the time required for diffusion to occur is inversely proportional to the rate of diffusion, as shown in the rate of diffusion equation. Ccea gcse 91 chemistry topic questions past papers. Build your students scientific thinking and practical skills with this textbook developed specifically for the 2017 gcse specifications and from the no. See also detailed wide ranging gcse chemistry notes.
Increasing the rate of diffusion distance a shorter distance will increase the rate of diffusion. Diffusion is the net movement of a substance from an area of high concentration to an area of low concentration. Gcse chemistry and gcse double award science chemistry teacher guidance sif3015. Diffusion is the movement of particles from a high to lower concentration. Some of the substances transported in and out of cells bu diffusion are. Provides everything you need for gcse chemistry and the chemistry content of gcse double award science. Aug 31, 2017 this covers the work on the second section atomic structure of unit as 1. This revision material is an excellent resource for the gcse ccea double award science course. Ccea will not be accepting entries from english centres for gcse courses that begin in or after september 2012. Ccea has developed new specifications which comply with criteria for gcse qualifications. This barcode number lets you verify that youre getting exactly the right version or edition of a book.
Click and collect from your local waterstones or get free uk delivery on orders over. Ni ccea course syllabus for science double award gcse. Describe why diffusion is important to animals and plants. Making your gcse chemistry studies much easier practise. This movement involves the transfer of water from a less concentrated solution to a more concentrated solution through a semipermeable membrane.
Active transport moves particles from low to higher concentration. Everyday low prices and free delivery on eligible orders. Gce chemistry teacher support event march 2019 zip, last updated. Dec 22, 2018 science with hazels perfect answer revision guides for edexcel igcse double science are available at topic timings cells 0. Gcse chemistry revision guide with online edition richard parsons on. The specification involves a new approach to chemistry at gcse by incorporating the. Ccea gcse double award science from september 2017. This will help you to understand how gases behave and also explain why smells spread. The whole of aqa chemistry paper 2 or c2 in only 48 minutes 91 gcse chemistry revision. Chemistry and chemistry for double award are the hardest subjects that you will meet are your level. Diffusion is the movement of a fluid from an area of higher concentration to an area of lower concentration.
Diffusion is the random movement of liquid or gas particles to fill the available space and spread evenly. We are now offering this specification as a unitised course. Content will no longer be kept uptodate from monday 20th january 2020. A process involving movement of gaseous species similar to diffusion is effusion, the escape of gas molecules through a tiny hole such as a pinhole in a balloon into a vacuum figure 9. Transport in cells edexcel test questions edexcel gcse. Difference nervous uses electrical, hormonal uses chemical nervous.
Gce revised from 2016 gcse revised 2017 examining with ccea. Ccea as chemistry 2016 thread gcse biology, chemistry and physics a level chemistry students. This difference in concentration is called the concentration gradient. This gcse chemistry specification is available for first teaching from september 2011. Osmosis is the diffusion of water across a membrane.
Gcse chemistry definitions when learning definitions i find it easier to move around and say them to yourself. Chemistry as practical ccea alevels without coursework or practicals for private candidates chemistry practical exam. To help you find the right resource for your students, we work with publishers to ensure that their textbooks align with our specifications using our approval process. Most people confuse it with diffusion, which does not involve movement through a membrane. Ccea examinations website for gce and gcse chemistry. Remember, dont rely on remembering them in the order they appear below as this will not be like an exam. Year 10 and year 11 pupils need to understand the passive movement of molecules in areas of high concentration, through membranes to areas, of low concentration. They often contain many illogical questions which unless proper revision has been undertaken, you will not be able to answer. In order to carry out photosynthesis a plant requires carbon dioxide. June 2017 foundation tier, gcse chemistry, unit 1 gch11 download past paper download marking scheme. Diffusion is the movement of particles from a region of higher concentration to a region of lower. Diffusion is the random movement of a substance from a region of high concentration to a region of low concentration.
This fully revised edition is in line with the revised 2002 national curriculum requirements and focuses on quantitative chemistry in science. Ccea as 1 chemistry in the first post of the year, youll find attached multiple resources for ccea as1 chemistry. This covers all the topics and modules for all specifications including 0620 topics that are covered include 1. Precise method for measuring absolute values of diffusion coefficients of binary gas mixtures. Igcse complete chemistry notes refined and cleared by kmq. Diffusion is a result of the kinetic properties of particles of matter. Click on any of the links below to view each subject. They provide the framework within which awarding organisations create the detail of the. I take you through the concept of diffusion and then we look at three factors that affect the rate of diffusion. Ccea gcse chemistry past papers cea gcse chemistry past papers.
Diffusion diffusion ccea gcse biology single science revision. Diffusion is the seemingly random movement of a substance from where these particles are in high concentration to where there are fewer. Students learn about organic chemistry, quantitative chemistry and electrochemistry. Gcse diffusion revise the passive movement of molecules. Osmosis is the diffusion of water molecules from a dilute solution to a more concentrated solution across a selectively permeable membrane. Ccea gcse chemistry past papers cea gcse chemistry past. These gcse subject criteria set out the knowledge, understanding, and skills for gcse specifications in biology, chemistry and physics to ensure progression from key stage 3 national curriculum requirements and the possibility of development into a level. Written to match all major gcse specifications the text covers all types of numerical questions from first principles. Double award a nonmodular and b modular from september 2004 transport 3. Gcse chemistry for ccea gcse science for ccea by judith johnston author, theo laverty author 5. Gcse chemistry for ccea revision book 2nd edition by alyn g. This is because molecules from the garbage diffused out of the can to the air which you breathed in.
On the underside of leaves there are small holes known as stomata, carbon dioxide diffuse into the leaves via these. The particles will mix until they are evenly distributed. We are constantly updating the content so keep checking back. Buy gcse chemistry for ccea revision book ccea gcse science by mcfarland, alyn g. Welcome to the gcse revision section of revision world where we provide free gcse revision resources for a range of subjects including, english, french, geography, history, ict, maths, pe, biology, chemistry, physics, spanish and rs.
Diffusion is a process fundamental to life no wonder then that its studied in gcse biology. Click on the links below to find the revision and exam resources you need. Gcse chemistry for ccea revision book ccea gcse science. It is used in kidney dialysis machines to filter the blood. Gcse biology revision worksheets biology past papers. Written by teachers for the cie igcse chemistry course. As particles move they collide with each other and bounce off in all directions. Binary diffusion coefficients of lower alkanes in nitrogen and argon.
Basic concepts in physical and inorganic chemistry of the ccea chemistry alevel course for the new specification 2016. For instance, if you pass by a trash can, you can smell the ugly scent of trash. Light energy results in the excitation of electrons in the chlorophyll. This is why the walls of structures that are adapted for diffusion, such as alveoli and. The diffusion stops where there is no concentration gradient existing. Igcse chemistry revision notes made for the cie exam boards. Photosynthesis is a complex process of synthesis of organic food materials in which water is oxidised and co 2 is reduced to carbohydrates. Leaves produce oxygen and water vapour and these in turn diffuse out via the stomata. Jun 30, 2017 buy ccea gcse chemistry by henry, nora, mcfarland, alyn g. Gcse chemistry for ccea 2nd edition has been specifically written for the new ccea specifications and is endorsed by the examination board.
Gcse chemistry the best free revision for gcse science. Prepare students for assessment with test yourself questions, maths practice and examstyle questions throughout. Free cie igcse chemistry revision notes designed by teachers for the 0620 0971 exam. Diffusion is the random movement of one liquid or gas through another, from a region of high concentration to a region of low concentration. Buy gcse chemistry for ccea revision book 2nd edition uk ed. At fuse school, teachers and animators come together to. Gcse science chemistry 91 effect of surface area on rate. Edexcel igcse chemistry revision notes topic questions. Structures, trends, chemical reactions, quantitative chemistry and analysis. Cie igcse chemistry revision notes topic questions past. The journal of chemical physics 1972, 56 1, 531536.
Making your gcse chemistry studies much easier practise with past papers and mark schemes. Evidence for particles diffusion diffusion in gases. Diffusion may also be thought of as the movement of particles down a concentration gradient. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Buy gcse chemistry for ccea revision book 2nd edition by alyn g. Oct 19, 2016 this revision material is an excellent resource for the gcse ccea double award science course. Uk education collection accessible books for individuals with print disabilities. Our mission is to enable the full potential of all learners to be achieved and recognised. Diffusion, is the scientific description for the gradual movement of particles from an area of many particles high concentration to.
Osmosis is one of the methods through which solvents. Supports foundation and highertier students in one book. Diffusion is an important process in animals and plants. This process is summarised by the flow diagram below. Building blocks open response questions sample exam. The rate of this movement is a function of temperature, viscosity of the medium, and the size mass of the particles. What you need to know for gcse science and additional science for gcse chemistry. When chemicals, like the smell of perfume or burning toast, are let loose in a room, the particles mix with the air particles.
Aqa subjects science gcse biology textbooks print and. These electrons are passed along a series of electron. The textbooks included below for gcse chemistry by collins, hodder education and oxford university press are now aqa approved. Website helping pupils to learn chemistry from home, providing free tution and learning and assessment materials. Some are common sense but make sure to test yourself afterward as at least 10 marks in every test will go to definitions. The gcse science section of revision science covers. New aqa gcse trilogychemistry pure, formulation and chromatography racheltromans. Ccea gcse science double award ccea gcse my revision notes by alyn g. The book covers all the material needed for both double award in science and triple award chemistry and is suitable for modular and linear courses alike. This increases flexibility and choice for teachers and students. Help with gcse options i am a ccea gcse candidate chemistry help atkins physical chemistry 10th edition answers show 10 more hello, my name is nicsy. Cie igcse notes a chemistry gcse, igcse, alevel, ib.
I have attached here my own revision notes from last year, which guided me through the gcse course. You may not have access to notes or textbooks to assist you. For examination entry codes please use the following link to the handbook. Gcse chemistry for ccea pdf uk education collection. Our gcse chemistry specification develops students knowledge and understanding of the material world and the effects of chemistry on society. Aqa gcse chemistry 8462 edexcel gcse chemistry 1ch0 ocr gateway chemistry j248 eduqas wjec chemistry. Ccea qualifications in chemistry are available at gcse and gce. All of edexcel igcse biology 2020 paper 1 double award. From wikibooks, open books for an open world diffusion. June 2018 higher tier, gcse chemistry, unit 2 gch22 past paper currently unavailable download marking scheme june 2017 ccea gcse chemistry past exam papers. Most of the material for studying complete gcse chemistry and igcse is also included.
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