This slideshow covers the Understanding Organisms module from the OCR Gateway 2011 course and includes: Fitness and health, modern diets and obesity, the circulatory system, arteries and veins, heart disease, high blood pressure, measuring blood pressure, smoking, saturated fats, balanced diets, cho ...more

This slideshow covers the Understanding Organisms module from the OCR Gateway 2011 course and includes: Fitness and health, modern diets and obesity, the circulatory system, arteries and veins, heart disease, high blood pressure, measuring blood pressure, smoking, saturated fats, balanced diets, choices of diet, proteins, storing glucose, body-mass index, eating disorders, pathogens, defending against microbes, what pathogens do to us, white blood cells, producing antibodies, fighting diseases, vaccinations, developing new drugs, placebos, malaria, cancer, brain tumours, the eye, binocular and monocular vision, focussing on different objects, problems with vision, the nervous system, nerve cells, synapses, conscious actions, reflex actions, drugs, legal and illegal drugs, reaction times, steroids, diffusion in the lungs, damaging the lungs through smoking, tobacco and lung cancer, the effects of alcohol, homeostasis, measuring and regulating body temperature, controlling body temperature, heat stroke, hypothermia, controlling blood sugar levels, diabetes, plant growth, plant hormones, artificial plant hormones, variation, environmental differences, sexual reproduction, chromosomes, genes, monohybrid cross diagrams, determining eye colour and inherited diseases, the debate over nature vs nurture....hide

This slideshow covers the Carbon Chemistry (C1) module from the 2011 OCR Gateway science syllabus and includes: compounds, naming simple compounds, writing chemical formulae, simple chemical reactions, balancing equations, the structure of the atom, mass and atomic number, atoms, ions and molecules, ...more

This slideshow covers the Carbon Chemistry (C1) module from the 2011 OCR Gateway science syllabus and includes: compounds, naming simple compounds, writing chemical formulae, simple chemical reactions, balancing equations, the structure of the atom, mass and atomic number, atoms, ions and molecules, ionic molecules, introduction to ionic and covalent bonding, fuels, hydrocarbons, fractional distillation, intermolecular forces, crude oil and its uses, cracking, choosing a fuel, combustion, incomplete combustion and the formation of soot, the Earth's atmosphere, the carbon cycle, evolution of the atmosphere, population and pollution, reducing pollution, formation of carbon monoxide and other pollutants, making polymers, alkanes, alkenes, testing for alkenes using bromine water, monomers and polymers, designer polymers, different properties of polymers, structure of plastics, nylon, Gore-tex, disposal of plastics, biodegradable plastics, the chemistry of cooking, artificial additives, emulsions, emulsifiers and how they work, baking powder, perfumes, solutions, key terms to do with solutions, solubility, using cosmetics, paint, ingredients of paint, water based and oil based paints, thermochromic and phosphorescent paint....hide

This slideshow covers the OCR Gateway Energy for the Home module from the new 2011 course and includes: particle theory revision, heat and temperature, thermograms, specific heat capacity, heating ice, latent heat of fusion, conduction, convection and radiation, heat transfer, house insulation, heat ...more

This slideshow covers the OCR Gateway Energy for the Home module from the new 2011 course and includes: particle theory revision, heat and temperature, thermograms, specific heat capacity, heating ice, latent heat of fusion, conduction, convection and radiation, heat transfer, house insulation, heat sinks, efficiency, Sankey diagrams, waves, the wave equation, reflection and refraction, wave diagrams, diffraction, electromagnetic radiation, the electromagnetic spectrum, light and sound signals, critical angles, Morse Code, total internal reflection, lasers, CD players, microwaves and ovens, sending microwave signals, mobile phone signals, dangers of mobile phones, using infra red, analogue and digital signals, reflecting radio waves off the ionosphere, using different radio frequencies, wireless technology, DAB vs analogue radio, earthquakes, the structure of the Earth, seismic waves, P waves and S waves, ultra violet, the dangers of UV rays, ozone, verifying the depletion of the ozone layer....hide