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OCR 21st Century

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This page contains PowerPoints for the NEW OCR 21st Century 2016 (9-1) GCSE course. The entire triple science course is covered in these slideshows. The separate science or higher tier only content is also clearly labelled, meaning that the slideshows can easily be adapted for double science and lower ability groups as well. Purchasing a subscription for this site enables you to download ALL of the content on this page and any future updates for the next 12 months.


Powerpoints for the following units:

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Biology Chemistry Physics

Biology:

Biology 1 - You and your genes

Use this slideshow to help you teach the new OCR 21st Century 2016 B1 unit. It covers: plant and animal cells, bacteria cells, how genetic information is stored in the chromosomes, using microscopes, the relationship between genes, chromosomes and DNA, how variations can be genetic and/or environmental, DNA in more detail including the role of nucleotides, how cells make proteins, genetic mutations in DNA, the genetics of sex determination, definitions of key terms such as dominant, recessive, homozygous and heterozygous, how characteristics are inherited, monohybrid cross diagrams and punnet squares, the work of Mendel, the Human Genome Project, genetic testing and its ethical issues, how genetic engineering is done, advantages and disadvantages of genetic modification.

34 slides

Biology 2 - Keeping Healthy

This slideshow covers: definitions of the terms "health" and "disease", communicable vs incommunicable diseases, pathogens and how they enter our body, how pathogens are spread, examples of different diseases (HIV, salmonella, athlete's foot and malaria), examples of plant diseases (ash dieback, TMV and crown gall), how our bodies defend ourselves against microbes, the role of platelets, how plants defend themselves against infections using physical and chemical means, white blood cells, producing antibodies, specificity of antibodies, preventing the spread of disease using individual, local and national means, vaccinations, identifying plant diseases, using a microscope, growing microorganisms using agar, how monoclonal antibodies are made, uses of monoclonal antibodies, health and lifestyle, interpreting data about health, lifestyle and non-communicable diseases, how diseases can interact, discovering new drugs, antibiotics, painkillers, calculating the area of an agar plate, cardiovascular disease and how to treat it, researching and testing new medicines, placebos, using monoclonal antibodies to fight cancer.

42 slides

Biology 3 - Living Together

This slideshow covers: photosynthesis and what it needs and produces, factors affecting the rate of photosynthesis, the two stages of photosynthesis, uses for glucose, enzymes and how they work, how enzymes are denatured, limiting the rate of photosynthesis, light intensity and how it affects photosynthesis, diffusion, osmosis, active transport, diffusion in stomata and bacteria cells, root hair cells, xylem and phloem, transpiration, factors affecting the rate of transpiration, measuring the rate of transpiration using a potometer, uses of carbon and nitrogen compounds, enzymes in digestion, food tests, food chains, plants as producers in food chains, food webs, numbering trophic levels in a food chain, pyramids of biomass, energy flow in a food chain, calculating the percentage of biomass transferred between levels in a food chain, ecosystems, competition within an ecosystem, interdependence, the water cycle, the carbon cycle, decomposition, factors affecting the rate of decay, landfill sites and the production of methane, abiotic factors in an ecosystem, biotic factors in an ecosystem, using quadrats, bioaccumulation, eutrophication, changes in population and how it affects a food chain, taking samples in an ecosystem, pollution indicators and identification keys.

67 slides

Biology 4 - Using Food

This slideshow covers the B4 OCR 21st Century unit from the 2016 syllabus, including: respiration and its equation, production of ATP, uses for ATP, anaerobic respiration, anaerobic respiration in plants and yeast, calorimetry, microscopy, use of scanning electron microscopes, cell division by mitosis, the stages of mitosis and interphase, cancer, cell growth through meiosis, fertilisation, cell differentiation, stem cells, meristems, plant hormones, use of ethene and gibberellins in plants, stem cell research, making decisions about stem cell research.

33 slides

Biology 5 - The Human Body

This slideshow covers everything from the B5 topic of the 2016 OCR 21st Century syllabus, including: what our bodies, need, diffusion, osmosis, active transport, examples of diffusion, osmosis and active transport in humans, how the lungs, kidneys and intestines use diffusion, the circulatory system, how systems work together in the human body,the heart and how it works, arteries, veins and capillaries, the different parts of blood, how exchange surfaces are adapted, surface area to volume ratios, the nervous system and how it works, conscious actions, structure of a nerve cell, synapses and how they work, reflex actions, the brain and its component parts, techniques for studying the brain, hormones and where they are produced, the endocrine system, adrenaline and thyroxine and how they are examples of negative feedback, homeostasis and what it means, how the body controls body temperature, vasodilation and vasoconstriction, osmosis and how it affects animal cells, kidneys and how they work, how the body regulates water content, hormones in human reproduction and the menstrual cycle, how fertility is affected by oestrogen, LH and FSH, methods of contraception, evaluating methods of contraception, fertility drugs, how IVF works, evaluating fertility treatment, how the liver controls blood sugar levels, glucogen and negative feedback, diabetes, how the eye works, the iris reflex, how the eye focuses on near and far objects, colour blindness, how long and short-sightedness can be corrected with lenses, cataracts, brain damage and limitations to treating it, stem cells, ethics behind decision making regarding stem cells.

76 slides

Biology 6 - Life on Earth

This PowerPoint covers: mutations in DNA, beneficial mutations, evolution and the work of Darwin and Wallace, natural selection and how it explains evolution, speciation, geographic isolation, selective breeding, evidence for evolution (including fossils, stone tools and the pentadactyl limb), how Darwin's work was controversial, sexual vs asexual reproduction, the advantages and disadvantages of each form of reproduction, classification and how we classify organisms, common ancestors, the evolution tree, using DNA to classify organisms, biodiversity, problems humans have caused such as deforestation and global warming, pollution indicator species, global population changes and how they affect food security, ways to increase food security, methods of maintaining biodiversity.

41 slides

Chemistry:

Chemistry 1 - Air and Water

This slideshow covers the C1 topic from the 2016 OCR 21st Century syllabus, including: particle theory, changes of state, limitations of the particle model, melting ice, changes of state in terms of bonds, predicting states of matter, composition of the Earth's atmosphere, how the atmosphere has evolved, reasons for the evolution of the atmosphere, forms of pollution, chemical reactions overview, balancing equations, conservation of mass in reactions, burning fuels, producing pollution through the combustion of fuels, removing sulfur, wet scrubbing, reducing pollution from vehicles, testing for oxygen, hydrogen and carbon dioxide, exothermic and endothermic reactions, energy level diagrams, representing exothermic and endothermic reactions on energy level diagrams, bond energies, using bond energies to calculate energy changes in a reaction, hydrogen fuel cells and their advantages and disadvantages, the greenhouse effect, effects of global warming, ways of reducing pollution and their different scales and risks, population growth, the rising need for potable water, chlorine in drinking water, how to make water potable, using aeration, distillation, chlorination and filtration to make water potable.

60 slides

Chemistry 2 - Chemical Patterns

This slideshow covers the 2016 C2 unit, including: the structure of the atom, how our understanding of atomic structure has developed, the work of Dalton, Rutherford and Bohr, relative sizes and scales of atoms, approximate sizes of different objects in terms of atoms, facts about protons, neutrons and electrons, calculating numbers of protons, neutrons and electrons, facts about the Periodic Table, electron structure, rows and periods and how they relate to electron configuration, how the Periodic table was developed by Mendeleev, properties of metals, Group 1 and its properties and reactivity, Group 7 and its properties and reactivity, displacement reactions of metal halides, Group 0 and its properties, ionic bonding, predicting formulae of ionic compounds, properties of ionic substances, dot and cross diagrams for ionic substances, giant ionic structures, numbers of protons and electrons for ions, dissolving and melting ionic substances, limitations of different ways of drawing ionic models, balancing equations, balancing ions in compounds, naming compounds, properties of transition metals.

52 slides

Chemistry 3 - Chemicals of the Natural Environment

This slideshow covers: metals and bonding within them, how metallic bonding leads to different properties, reactivity of metals, the Reactivity Series, balancing equations, revision of ionic bonding, displacement reactions, ionic equations for displacement reactions, extracting metals from ores, how extraction depends on reactivity, bioleaching and phytomining, electrolytes, electrolysis, writing half equations for electrolysis, oxidation and reduction in electrolysis, extracting aluminium using electrolysis, predicting products from electrolysis, hydrocarbons and crude oil, fractional distillation, alkanes, general formula for alkanes, forces between hydrocarbon molecules, covalent bonding, dot and cross diagrams, limitations of ways of drawing covalent molecules, how intermolecular forces lead to properties, cracking, alkenes, general formula for alkenes, addition polymerisation, alcohols, carboxylic acids, burning hydrocarbons.

61 slides

Chemistry 4 - Material Choices

This slideshow covers: ceramics, polymers and their properties, composite materials, alloys and how they are hardened, monomers and how they are used to make polymers, properties of polymers, condensation polymerisation, DNA, amino acids and proteins, carbon and how it makes four bods, giant ionic structures, giant covalent structures, metallic bonding, simple covalent molecules, forces between molecules, nanotechnology, graphene, fullerenes, rusting and what causes it, ways to prevent rust, Life Cycle Assessments, recycling, viability of recycling.

47 slides

Chemistry 5 - Chemical Analysis

This PowerPoint covers: formulations and what they are, pure and impure substances, melting points of mixtures, boiling points of mixtures, separating mixtures using chromatography, evaporation, filtration and fractional distillation, representative sampling, flame tests, precipitation reactions, metal hydroxides and their precipitates, testing for carbonates, testing for halide ions, testing for sulfate ions, flame emission spectroscopy, instrumental methods, conservation of mass in reactions, balancing equations, atomic mass, relative formula mass, a mole and its definition, calculating the number of moles, balancing equations using moles, limiting quantities in reactions, calculating the mass of a product, problems with calculating the masses of products, percentage yields, calculating the volume of a product, quantitative vs qualitative analysis, concentration and how to calculate it, converting concentrations, acids and alkalis, universal indicator, the pH scale, neutralisation reactions, titration, titration calculations.

72 slides

Chemistry 6 - Making Useful Chemicals

Use this slideshow to teach the C6 unit. It covers: adding acids to metals, writing word equations, adding acids to carbonates, making salts, making soluble salts, using ions to write chemical formulae, universal indicator and the pH scale, different types of indicator, neutralisation reactions, writing word equations for neutralisation reactions, strength and concentration of acids, collision theory, rates of reaction and how they are affected by surface area, concentration, temperature and pressure, energy level diagrams for reactions, how catalysts work, representing catalysts on energy level diagrams, measuring the rate of reaction, calculating the rate of reaction using tangents on a graph, using enzymes as catalysts, industrial uses of enzymes, endothermic and exorthermic reactions recap, reversible reactions, equilibrium, changing equilibrium by changing temperature and pressure, NPK fertilisers, eutrophication, making ammonia, the Haber Process, atom economy, factors to consider when choosing a reaction pathway, green chemistry, making ammonium sulfate.

58 slides

Physics:

Physics 1 - Radiation and Waves

This slideshow covers the P1 unit from the OCR 21st Century 2016 syllabus, including: what waves are, electromagnetic radiation, the electromagnetic spectrum, what happens when waves hit a boundary, electron structure and how radiation affects it, changing atoms by ionisation, dangers of the electromagnetic spectrum, use for different radiations, how radio waves are transmitted, evidence for global warming, the greenhouse effect, the role of carbon dioxide in global warming, radiation emitted by objects of different colours, how incoming and outgoing radiation affects the temperature of a body, factors that affect the temperature of the Earth, definitions of amplitude, wavelength and frequency, what transverse and longitudinal waves are, the wave equation, measuring the speed of water waves and sound, reflection, refraction, why light is refracted, specular and diffuse reflection, different colours of light and their different wavelengths, how lenses work, converging and diverging lenses, how colour filters work, sound waves, how the speed of sound varies in solids, how the ear hears, how sonar works, using ultrasound for scanning, how earthquakes help us study the inside of the Earth, what happens to wavelength and frequency when refraction happens.

61 slides

Physics 2 - Sustainable Energy

This slideshow covers: types of energy, using electrical energy to do work, how to calculate power, example questions, energy changes, how energy cannot be created or destroyed, wasted energy in the form of heat, heat loss from a house, wall thickness and how it affects heat loss, efficiency and how to calculate it, how to improve efficiency, Sankey diagrams, fuels, how electricity is generated, renewable and non-renewable fuels, how power stations work, AC and DC, the National Grid, how plugs work, how electrocution works, different sources of energy in the UK.

35 slides

Physics 3 - Electric Circuits

This slideshow covers this content from the 2016 21st Century syllabus: how static electricity is generated, what an electric field is, how distance affects the strength of an electric field, electric fields around charges, the definition of electric current, circuit symbols, basic ideas about current, voltage and resistance, how charge is calculated, Ohm's Law and how to calculate resistance, factors that affect resistance, current-voltage graphs for resistors, bulbs and diodes, electrical work done, current and voltage in series and parallel circuits, resistors in series and parallel, equivalent resistance, using LDRs and thermistors, energy and power, calculating power, the National Grid, power conservation in transformers, magnetic field around a bar magnet, magnets attracting and repelling, the Earth's magnetic field, plotting a magnetic field using a compass, permanent and induced magnetism, magnetic field around a current-carrying wire, making electromagnets, factors that make a solenoid a stronger electromagnet, how loudspeakers work, the motor effect, Fleming's Left Hand Rule, F=BIL, using motors in everyday life, how motors work, electromagnetic induction, factors that affect the strength of an induced voltage, how microphones work, magnetism opposing its induction (Lenz's Law), AC generators, how AC generators and DC dynamos compare, how transformers work, the transformer equation.

107 slides

Physics 4 - Explaining Motion

This slideshow covers the entire Explaining Motion (P4) unit, including: contact and non-contact forces, forces acting as pairs, Newton's 3rd Law of Motion, forces represented as vectors, weight and mass, Newton's observations, distance vs displacement, speed vs velocity, measuring distance and time, calculating speed, estimations of everyday speeds, different ways of measuring speed, vector and scalar quantities, distance-time graphs, acceleration, velocity-time graphs, balanced and unbalanced forces, Newton's 1st Law of Motion, resultant forces, drawing forces as scale vector diagrams, momentum, conservation of momentum, change in momentum and time, circular motion, balancing turning moments, the principle of moments, levers and gears, Newton's 2nd Law of Motion, F=ma, inertial mass, approximate values of acceleration, measuring reaction times, stopping distances, factors affecting thinking and braking distances, different types of energy, the conservation of energy, energy changes, work done and how to calculate it, calculating kinetic energy and gravitational potential energy, different examples of doing work and the resulting changes in stored energy.

101 slides

Physics 5 - Radioactive Materials

This slideshow covers: atomic structure and the sizes of atoms and nucleii, the development of atomic structure theory including the work of Rutherford, Bohr and Thomson, the Rutherford Scattering Experiment and what it showed, mass and atomic number, isotopes, ionisation, what causes radioactivity, different types of radiation, how radiation is blocked, writing balanced equations for radioactive decay, radioactive decay graphs, half life, contamination and irradiation, using radioactive materials in medicine, nuclear fission, chain reactions, nuclear fusion, pros and cons of using nuclear power.

35 slides

Physics 6 - Matter - Models and Explanations

This slideshow covers all of the content of the P6 Matter topic from the 2016 OCR 21st Century course, including: density and how to calculate it, the work of James Joule, specific heat capacity and how to practically investigate it, questions on specific heat capacity, specific latent heat and how to calculate it, what happens when ice is heated, energy stores, particle theory, using particle theory to explain density and changes in state, conservation of mass during a change in state, gas pressure and how it is affected by an increase in temperature, the effect of forces, how two forces are needed for twisting or stretching, stretching a spring, how molecules are pulled apart during stretching, force-extension graphs for a spring and a rubber band, elastic limit, plastic deformation, calculating the work done in stretching a spring by considering the area under a graph, elastic potential energy, the relationship between pressure and volume in a gas, atmospheric pressure and what causes it, pressure against depth in a liquid, why objects float or sink, the solar system, what causes orbits, circular motion, radius of a circular path and how it affects speed, how the solar system was formed, work and temperature in a gas, how stars were formed, main sequence stars and the balance of forces, the Big Bang Theory and how red shift gives evidence for it.

90 slides