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Bbc: Gcse Bitesize: Analyzing and Identifying Substances Aqa
This lesson focuses on analyzing and identifying substances. Substances can be analyzed using a variety of methods including paper chromatography, gas chromatography and mass spectrometry. After reading about the different techniques,...
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Bbc: Gcse Bitesize: How Can Lifestyle, Genes and Environment Affect Health? Oc
This lesson focuses on Cardiovascular disease. The heart requires its own constant blood supply in order to keep beating and this is delivered through the coronary arteries. Genetic and lifestyle factors can lead to the coronary arteries...
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Bbc: Gcse Bitesize: Communicable Diseases
This lesson focuses on communicable diseases that are caused by bacteria including Gonorrhea and Salmonella. Links to a video and a test are provided.
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Bbc: Gcse Bitesize: Treating, Curing and Preventing Disease
This lesson focuses on developing and testing new drugs including their safety, effectiveness, and dosage; and the three main stages of testing. A link to a test is provided.
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Bbc: Gcse Bitesize: Adaptations, Interdependence and Competition
This lesson focuses on how plants and animals live together in a community or ecosystem by adapting, interdependence, and competition.
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Bbc: Gcse Bitesize: Work, Power and Efficiency
This lesson focuses on energy and power. Energy is a key principle in physics, as it allows work to be done. The rate at which energy is transferred is called power and the amount of energy that is usefully transferred is called...
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Bbc: Gcse Bitesize: Forces, Acceleration and Newton's Laws Aqa
This lesson focuses on Newton's First Law: an object remains in the same state of motion unless a resultant force acts on it. If the resultant force on an object is zero, this means: a stationary object stays stationary; a moving object...
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Bbc: Gcse Bitesize: The Periodic Table
This lesson focuses on the periodic table and the configurations. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic configurations model how electrons are arranged in atoms. A link to...
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Bbc: Gcse Bitesize: Exothermic and Endothermic Reactions Aqa
This lesson focuses on Exothermic and Endothermic Reactions. Exothermic reactions transfer energy to the surroundings. Endothermic reactions take in energy from the surroundings. It provides links to a video and a test.
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Bbc: Gcse Bitesize: Organization of an Ecosystem Aqa
This lesson focuses on the organization of an ecosystem. The feeding relationships between organisms in an ecosystem can be seen in food chains. Sampling allows us to measure the abundance and distribution of these species. It provides...
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Bbc: Gcse Bitesize: Forces and Elasticity Aqa
This lesson focuses on forces and elasticity. Forces are responsible for changing the motion of objects. If more than one force is present, the shape of an object can also be changed. A link to a test is provided.
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Bbc: Gcse Bitesize: Electrolysis Aqa
This lesson focuses on Electrolysis, the process by which ionic substances are broken down into simpler substances using electricity. During electrolysis, metals and gases may form at the electrodes. Links are provided to a video and a...
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Bbc: Gcse Bitesize: Crude Oil, Hydrocarbons and Alkanes
This lesson focuses on alkanes which are saturated hydrocarbons including the general formula, properties, examples, and structures. It also provides links to a video and a test.
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Bbc: Gcse Bitesize: Atoms, Elements and Compounds
This lesson focuses on atoms and elements including what they are, the chemical symbols for elements, and the placement of elements on the periodic table. A link to a test is provided.
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Bbc: Gcse Bitesize: Mitosis and Cell Specialization
This lesson focuses on cell specialization. This cell must divide to produce a multi-cellular organism. It must also differentiate, so that its cells develop features that enable them to fulfil specific roles. Links are provided to a...
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Bbc: Gcse Bitesize: What Is Electric Charge? Ocr 21 C
This lesson focuses on electric charges. Electric current is the flow of electric charge. Some insulating materials become electrically charged when they are rubbed together. A substance that gains electrons becomes negatively charged,...
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Bbc: Gcse Bitesize: Crude Oil, Hydrocarbons and Alkanes
This lesson focuses on Fractions including the properties of fractions, and complete and incomplete combustion. Links to a video and a test are provided.
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Bbc: Gcse Bitesize: Organic Compounds
The alkanes, alkenes, alcohols and carboxylic acids are four different homologous series of organic compounds. Their different chemical properties are due to their characteristic functional groups. This lesson focuses on Alkanes...
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Bbc: Gcse Bitesize: Evolution
Evolution is the change of inherited characteristics within a population over time through natural selection, which may result in the formation of a new species.
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Bbc: Gcse Bitesize: Earth and Atmospheric Science
There is evidence that the Earth's early atmosphere contained less oxygen but more carbon dioxide and water vapor than it does today. Increased emissions of greenhouse gases have led to climate change. Link to a test is included.
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Bbc: Gcse Bitesize: Calculations for All Students
Law of conservation of mass: No atoms are created or destroyed in a chemical reaction. They just join together in a different way than they were before the reaction, and form products. This means that the total mass of the products in a...
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Bbc: Gcse Bitesize: Homeostasis in Humans
Homeostasis is the regulation of internal conditions inside cells or organisms, to create the optimum conditions for biological function, including body temperature. Links to a video and test are provided.
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Bbc: Gcse Bitesize: Energy Demands
Electricity is a very convenient form of energy that can be generated using different energy resources. Some of these resources are renewable and some are non-renewable. Each resource has advantages and disadvantages. A link to a test is...
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Bbc: Gcse Bitesize: Cell Division
Chromosomes carry genetic information in a molecule called DNA. A type of cell division called mitosis ensures that when a cell divides each new cell produced has the same genetic information. Links to a video and a test are provided.