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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.
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Bbc: Gcse Bitesize: Energy and Heating
Energy is transmitted by conduction, convection or radiation.The conductivity of materials can be compared by examining the time taken to transmit energy through them. This lesson explains how conduction works and provides a link to a test.
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Bbc: Gcse Bitesize: Alcohols and Carboxylic Acids
This lesson focuses on Alcohols which contain the -OH functional group. It discusses the general formula for alcohols and an example of the alcohol Decanol. It also provides a table of three alcohols with their formulas and structures....
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Bbc: Gcse Bitesize: Metals and Corrosion
This lesson focuses on corrosion and rusting which can be prevented by keeping oxygen and water away, and by sacrificial protection. A link to a test is provided.
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Bbc: Gcse Bitesize: What Does the Periodic Table Tell Us About the Elements?
The number of protons in the atom of an element determines its place in the Periodic Table. The number of electrons in an atom is the same as the number of protons. These electrons are arranged in shells or 'energy levels' around the...
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Bbc: Gcse Bitesize: Changes in Energy Stores
Energy can be described as being in different "stores". It cannot be created or destroyed but it can be transferred, dissipated or stored in different ways. There are seven main stores of energy: magnetic, internal (thermal), chemical,...
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Bbc: Gcse Bitesize: Electromagnets Higher
This lesson explains how a DC electric motor works including a diagram and description and links to a video and a test.
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Bbc: Gcse Bitesize: Natural Selection and Evolution
Darwin's theory of evolution explains how species of living things have changed over geological time in order to survive in the changing environment. A link to a test is provided.
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Bbc: Gcse Bitesize: What Does the Periodic Table Tell Us About the Elements?
The elements in Group 7 of the Periodic Table are called the halogens. They include chlorine, bromine and iodine. Learn about their properties and uses, then take a quiz.
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Bbc: Gcse Bitesize: Transition Metals, Alloys and Corrosion
The transition metals are placed in the center of the periodic table, between groups 2 and 3. They are generally hard and dense, and less reactive than the alkali metals. Iron, copper, silver and gold are important transition metals. A...
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Bbc: Gcse Bitesize: Types of Chemical Reactions
Bases are substances that can react with acids and neutralize them. Alkalis are bases that are soluble in water. The pH scale measures how acidic or alkaline a substance is. Substances with a pH lower than 7 are acidic, those with a pH...