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Cells and movement across cell membranes:

· Plant cells | Video | Quiz |

· Animal cells | Video | Quiz |

· Specialised cells | Video | Quiz |

· Microscopes | Video | Quiz |

· Magnification calculations | Video | Quiz |

· Active transport (HT only) | Quiz |

· Diffusion | Video | Quiz |

· Factors affecting diffusion | Video |

· Osmosis | Quiz |

· Enzymes | Video 1 | Video 2 | Quiz |

· Lock and key mechanism | Video |


Respiration and the respiratory system in humans:

· Respiration | Quiz |

· Anaerobic respiration | Quiz |

· Exercise | Quiz |

· Oxygen debt | Quiz |

· Respiratory system | Video | Quiz |

· Bell jar model | Quiz |

· Ventilation | Quiz |

· Smoking | Quiz |


Digestion and the digestive system in humans:

· Testing for sugars, starch and protein | Quiz |

· Biological molecules | Quiz |

· The digestive system and peristalsis | Video | Quiz |

· Diet | Quiz |


Circulatory system in humans:

· The heart | Video | Quiz |

· Blood and blood vessels | Video | Quiz |

· Cardiovascular disease (Biology only) | Quiz |


Plants and photosynthesis:

· Photosynthesis | Video | Quiz |

· Plant organs (Biology only) | Quiz |

· Transpiration (Biology only) | Quiz |

· Plant nutrients (Biology only) | Quiz |


Ecosystems, nutrients cycles and human impact on the environment:

· Food chains | Video | Quiz |

· Producers and consumers | Quiz |

· Trophic levels | Quiz |

· Decay | Video | Quiz |

· The carbon cycle (Biology only) | Video | Quiz |

· The nitrogen cycle (Biology only) (HT only) | Quiz |

· Pollution | Quiz |

· Biodiversity | Quiz |

· Impact of humans | Quiz |

· Sustainable methods for food production | Quiz |

· The capture/re-capture method (HT only)


Classification and biodiversity:

· Classification | Quiz |

· Ecosystems and communities | Quiz |

· Biotic and abiotic factors | Video | Quiz |

· Adaptations | Quiz |

· Quadrats and transects | Quiz |


Cell division and stem cells:

· DNA and chromosomes | Quiz |

· Mitosis | Video | Quiz |

· Meiosis | Video | Quiz |

· Stem cells and stem cell therapy | Quiz |


DNA and inheritance:

· Structure of DNA | Video | Quiz |

· Genetics key words | Quiz |

· Genetics crosses | Video | Quiz |

· Cystic fibrosis | Quiz |

· Embryo screening | Quiz |

· Genetic engineering | Quiz |

· Producing GM crops | Quiz |


Variation and evolution:

· Variation within a population | Quiz |

· Asexual reproduction | Quiz |

· The advantages and disadvantages of sexual and asexual reproduction | Quiz |

· Evolution | Quiz |

· Natural selection | Video | Quiz |

· The theory of evolution | Quiz |

· Antibiotic resistance | Quiz |


Response and regulation:

· Homeostasis | Quiz |

· Nervous system | Quiz |

· The eye (Biology only) | Video | Quiz |

· The endocrine system | Quiz |

· Blood glucose - high and low (HT only) | Quiz |

· Type 1 and Type 2 diabetes | Quiz |

· Gravitropism and geotropism (Biology only) (HT only) | Video | Quiz |

· Auxins (Biology only) | Quiz |

· Reflex arc (HT only) | Video |


Role of the kidney in homeostasis:

· The kidneys and their structure (Biology only) | Video | Quiz |

· The urinary system (Biology only) | Quiz |

· The nephron (Biology only) (HT only) | Quiz |

· ADH (Biology only) (HT only) | Quiz |


Microorganism and their applications:

· Bacterial cultures (Biology only) | Video 1 | Video 2Quiz |

· Production of Penicillin (Biology only) | Quiz |


Disease, defence and treatment:

· Health and disease | Quiz |

· Diseases | Quiz |

· Bacterial cells | Video | Quiz |

· Sexually transmitted diseases | Quiz |

· Malaria | Quiz |

· Immune system | Quiz |

· Purpose of vaccines (HT only) | Quiz |

· Antibiotics and resistance | Quiz |

· Drug development | Quiz |

· Monoclonal antibodies (Biology only) (HT only) | Quiz |


The nature of substances and chemical reactions:

· Elements and compounds | Video | Quiz |

· Mass number and atomic number | Video | Quiz |

· Relative masses | Video | Quiz |

· Separating mixtures | Video 1 | Video 2 | Video 3Quiz |

· Chromatography | Video | Quiz |

· Equations | Video 1 | Video 2 | Video 3 | Quiz |

· Chemical equations | Video 1 | Video 2 | Quiz |

· Percentage yield | Video | Quiz |


Atomic structure and the periodic table:

· Structure of an atom | Video | Quiz |

· Atoms | Video |

· Periodic table | Video 1 | Video 2 | Video 3 | Video 4 Quiz |

· Electronic structure | Quiz |

· Group 0 | Video |

· Group 1 | Video 1 | Video 2 | Video 3 Quiz |

· Group 7 | Video | Quiz |

· Tests for hydrogen, carbon dioxide and oxygen | Video | Quiz |

· Flame tests | Video 1 | Video 2 | Quiz |

· Nobel gases | Quiz |


Water:

· Natural water | Quiz |

· Potable water | Video | Quiz |

· Treating waste water | Video | Quiz |

· Solubility | Quiz |

· Solubility curves | Quiz |

· Hardness of water | Quiz |


The ever-changing Earth:

· The Earth | Video | Quiz |

· The atmosphere | Video 1 | Video 2 | Video 3 | Quiz |

· Greenhouse gases | Video 1 | Video 2 | Video 3 | Video 4Quiz |

· Pollution | Video 1 | Video 2 | Video 3 | Video 4Quiz |


Rate of chemical change:

· Finding the rate of reaction | Video | Quiz |

· Graphs showing rates of reaction | Video 1 | Video 2 | Video 3 | Quiz |

· Measuring a reaction | Video | Quiz |

· Collision theory | Quiz |


Limestone:

· Metal carbonates (Chemistry only) | Quiz |

· Limestone (Chemistry only) | Quiz |


Bonding structure and properties:

· Ionic bonding | Video 1 | Video 2Quiz |

· Ions | Video 1 | Video 2 | Video 3 | Quiz |

· Covalent bonding | Video | Quiz |

· Metallic bonding | Video | Quiz |

· Alloys | Video | Quiz |

· Structure and properties of ionic compounds | Quiz |

· Simple covalent compounds | Quiz |

· Giant covalent compounds | Video 1 | Video 2 | Quiz |

· Structure of polymers | Video | Quiz |

· Diamond graphite | Video 1 | Video 2 | Quiz |

· More carbon structures | Quiz |

· Smart materials | Quiz |

· Dot and cross diagrams | Video 1 | Video 2 |

· Fullerenes | Video |

· Nanoparticles (HT only) | Video |


Acid, bases and salts:

· Acidic and alkaline conditions | Video |

· Neutralisation | Video |

· pH | Video | Quiz |

· Titrations | Video 1 | Video 2 | Video 3 | Video 4 | Quiz |

· Making salts | Video 1 | Video 2 | Quiz |

· Salt equations | Video | Quiz |

· Titration calculations (Chemistry only) | Video | Quiz |

· Strong and weak acids (Chemistry only) | Video | Quiz |

· Tests for anions (Chemistry only) | Video 1 | Video 2 | Quiz |


Metals and their extraction:

· The reactivity series and displacement reactions | Video | Quiz |

· Oxidation and reduction | Video | Quiz |

· Electrolysis of aluminium | Video | Quiz |

· Metals | Video | Quiz |

· Half equations | Video | Quiz |

· Electrolysis | Video 1 | Video 2 | Video 3 | Video 4 | Video 5Quiz |

· Compounds | Video 1 | Video 2 | Video 3 | Video 4 | Video 5 |

· Transition metals | Video |


Chemical reactions and energy:

· Exothermic and endothermic reactions | Video 1 | Video 2 Quiz |

· Energy changes in a reaction | Video 1 | Video 2 | Video 3Quiz |


Crude oil, fuels and organic chemistry:

· Alkanes and hydrocarbons | Video | Quiz |

· Fractional distillation | Video 1 | Video 2 | Quiz |

· Viscosity | Video |

· Complete and incomplete combustion | Video | Quiz |

· Hydrogen | Video 1 | Video 2 | Video 3Quiz |

· Crude oil | Video |

· Cracking | Quiz |

· Alenes | Video 1 | Video 2 | Video 3Quiz |

· Monomers and polymers | Quiz |

· Polymerisations | Quiz |


Reversible reactions, industrial processes and important chemicals:

· Reversible and irreversible reactions (Chemistry only) | Quiz |

· The Haber process (Chemistry only) | Video 1 | Video 2 | Quiz |


Electric circuits:

· Circuit symbols | Video | Quiz |

· Series and parallel circuits | Video 1 | Video 2 | Video 3 | Video 4 | Quiz |

· Charge and current | Video | Quiz |

· Potential difference and resistance | Video | Quiz |

· Current-potential difference graphs | Video | Quiz |

· LDRs and Thermistors | Video 1 | Video 2 |

· Potential difference in a series circuit | Video 1 | Video 2 | Video 3 |

· Potential difference and power | Video | Quiz |


Generating electricity:

· Renewable energy sources | Quiz |

· Non-renewable energy sources | Quiz |

· Sankey diagrams | Quiz |

· Ways to increase efficiency | Video | Quiz |

· Efficiency | Video | Quiz |

· The National Grid | Quiz |


Making use of energy:

· Solids, liquids and gases | Video 1 | Video 2Quiz |

· Conduction, convection and radiation | Quiz |

· Density | Video | Quiz |

· Payback time | Quiz |


Domestic electricity:

· Power equation | Quiz |

· Fuses and circuit breakers | Quiz |

· Plugs | Video |

· Mains electricity | Quiz |


Features of waves:

· Transverse and longitudinal waves | Quiz |

· Time period of waves | Quiz |

· The speed of waves | Quiz |

· Reflection | Quiz |

· Refraction | Video | Quiz |

· Electromagnetic spectrum | Quiz |

· Satellites and their orbit | Quiz |


The total internal reflection of waves:

· Internal reflection of light | Video | Quiz |

· Optical fibres | Quiz |


Seismic waves:

· P and S waves (Physics only) | Quiz |

· Ultrasound (Physics only) | Quiz |


Kinetic theory:

· Pressure (Physics only) | Quiz |

· Work on a gas (Physics only) | Quiz |

· Volume (Physics only) | Quiz |

· Work on a system (Physics only) | Quiz |

· Specific heat capacity (Physics only) | Quiz |


Electromagnetism:

· Magnets (Physics only) | Video | Quiz |

· Electromagnets (Physics only) | Video 1 | Video 2 | Quiz |

· Flemings left-hand rule (Physics only) (HT only) | Video | Quiz |

· Magnetic flux density (Physics only) (HT only) | Video | Quiz |

· Motors (Physics only) | Video | Quiz |

· The generator effect (Physics only) | Video | Quiz |

· Transformers (Physics only) | Video 1 | Video 2 | Quiz |


Distance, speed and acceleration:

· Scalar and vector | Video 1 | Video 2 | Quiz |

· Displacement | Quiz |

· Distance-time and velocity-time graphs | Video 1 | Video 2Quiz |

· Acceleration | Quiz |

· Stopping distance | Quiz |

· Car safety | Quiz |


Newton's Laws:

· Inertia | Quiz |

· Newton's First Law | Video | Quiz |

· Weight and mass | Quiz |

· Newton's Second Law | Quiz |

· Terminal velocity | Quiz |

· Newton's Third Law | Quiz |


Work and energy:

· Work and forces | Quiz |

· Energy | Video | Quiz |

· Kinetic Energy Calculations (HT only) | Video |

· Elastic objects | Quiz |

· Elastic potential energy | Quiz |

· Gravitational potential energy | Quiz |


Further motion concepts:

· Momentum (Physics only) | Video | Quiz |

· Acceleration formula (Physics only) | Video | Quiz |

· Moments (Physics only) | Video 1 | Video 2 | Video 3 | Video 4 | Quiz |


Stars and planets:

· The solar system | Quiz |

· Life cycle of a star | Video | Quiz |

· Orbital motion | Quiz |


The universe:

· Moving objects (Physics only) | Quiz |

· Red and blue shift (Physics only) | Video | Quiz |


Types of radiation:

· Atoms | Quiz |

· Ions and isotopes | Quiz |

· Radiation | Video |

· Radioactive decay | Video 1 | Video 2 | Quiz |

· Radioactive contamination | Video | Quiz |

· Background radiation | Video | Quiz |

· Nuclear Fusion (Physics only) | Video |


Half-life:

· Half-life | Video | Quiz |


Nuclear decay and nuclear energy:

· Nuclear fission and nuclear fusion (Physics only) | Video | Video 2Quiz |

· Nuclear reactor (Physics only) | Video | Quiz |

· Nuclear equations (Physics only) (HT only) | Video | Quiz |

WJEC Science Overview:


Double Award:

6 x 1 hr 15 minute papers worth 60 marks each

(15% of grade each)


10% of qualification comes from a practical exam not assessed in the summer


· Biology paper 1 – Units 1.1-1.6

· Biology paper 2 – 4.1-4.6

· Chemistry paper 1 – 2.1-2.5

· Chemistry paper 2 – 5.1-5.5

· Physics paper 1 – 3.1-3.5

· Physics paper 2 – 6.1-6.6


Single Award:

2 x 1 hr 45 minute papers worth 80 marks each

(15% of grade each)


10% of qualification comes from a practical exam not assessed in the summer


· Biology paper 1 – Units 1.1-1.6

· Biology paper 2 – 2.1-2.8

· Chemistry paper 1 – 1.1-1.6

· Chemistry paper 2 – 2.1-2.6

· Physics paper 1 – 1.1-1.9

· Physics paper 2 – 2.1-2.9

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