All Compounds and mixtures articles – Page 6

  • A close-up photograph of an old, small unlit light bulb, similar to those used in school experiments
    Class experiment

    Which substances conduct electricity?

    In association with

    In this class practical, students test the conductivity of covalent and ionic substances in solid and molten states. Includes kit list and safety instructions.

  • The underside of a bathroom tap coated in white and discoloured limescale deposits
    Demonstration

    How can hardness in water be removed?

    In association with

    Investigate the effects of three treatments for softening hard water in this class practical and demonstration. Includes kit list and safety instructions.

  • A close-up photograph of a glass test tube containing water and oil
    Class experiment

    Emulsifiers in the kitchen

    In association with

    Test a range of common ingredients to see which ones stabilise an oil and water emulsion in this class practical. Includes kit list and safety instructions.

  • Two black wires being soldered together using a soldering iron
    Class experiment

    Making solder as an alloy of tin and lead

    In association with

    Try this practical to make solder by heating together the metals tin and lead before investigating the alloy’s properties. Includes kit list and safety instructions.

  • A close-up photograph of wet laminaria ribbon seaweed (or kelp) on a beach
    Demonstration

    Extracting iodine from seaweed

    In association with

    Discover how ribbon seaweed (or kelp) can be used as a source of iodine in this demonstration or class experiment. Includes kit list and safety instructions.

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    Mixing drinks

    The activity uses two methods to develop metacognition. First, students are asked to solve a problem and then reflect on the thinking styles that they used. In the other method students discuss four modelled thinking styles of fictional students.

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    Atoms, elements, molecules, compounds and mixtures

    This activity is designed to help students clarify the relationship between atoms, elements, molecules, compounds and mixtures. It also develops the skill of using Venn diagrams in organising their understanding.

  • A close-up photograph of silver-grey iodine crystals on a neutral background
    Demonstration

    Distribution of iodine between two immiscible solvents

    In association with

    Use this class experiment or demonstration to create an equilibrium distribution using iodine in two immiscible solvents. Includes kit list and safety instructions.

  • Two clusters of white soap or detergent bubbles on a flat surface against a turquoise background
    Class experiment

    Making soaps and detergents using castor oil

    In association with

    Try this class practical to make a soap or detergent using castor oil and either sodium hydroxide or sulfuric acid. Includes kit list and safety instructions.

  • Types of rock
    Resource

    Separating Mixtures

    Covers methods of separation through to separating mixtures of minerals on the basis of their different physical properties.

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    Atmospheric chemistry by danceroom Spectroscopy (dS)

    A series of short videos presented by Dr David Glowacki within an interactive dome called danceroom Spectroscopy (dS). 

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    Free Range Chemistry: Part 4

    Short videos of exciting demonstrations of the chemistry of everyday materials, taken from a lecture by Peter Wothers at the University of Cambridge. Video: Free Range Chemistry: 32 - Saltpetre (Potassium Nitrate) Video: Free Range Chemistry: 33 - Saltpetre and Paper ...

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    Free Range Chemistry: Part 1

    Short videos of exciting demonstrations of the chemistry of everyday materials, taken from a lecture by Peter Wothers at the University of Cambridge. Video: Free Range Chemistry: 01 - Everything is Chemical Video: Free Range Chemistry: 02 - Coffee - Delicious Chemicals ...

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    Free Range Chemistry: Part 3

    Short videos of exciting demonstrations of the chemistry of everyday materials, taken from a lecture by Peter Wothers at the University of Cambridge. Video: Free Range Chemistry: 24 - Limestone Video: Free Range Chemistry: 25 - Shells Video: Free Range ...

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    NBC Learn: Chemistry Now

    This resource includes both videos and worksheets. The website makes links to everyday contexts in which chemistry is important. This material would provide enrichment to lessons using contemporary chemical examples.

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    The Chemistry of Light: Part 2

    A series of short experiments and demonstrations about the chemistry of light, taken from a lecture by Peter Wothers from the University of Cambridge Video: The Chemistry of Light: 11 - Gas Mantles Video: The Chemistry of Light: 12 - Nitric Oxide & Carbon ...

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    The Chemistry of Light: Part 3

    A series of short experiments and demonstrations about the chemistry of light, taken from a lecture by Peter Wothers from the University of Cambridge Video: The Chemistry of Light: 21 - Colouration of Flames Video: The Chemistry of Light: 22 - Oxidation of Luminol ...

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    The alkali metals videos: part 1

    A series of short, fun videos exploring the chemistry of the alkali metals

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    Chemistry in your Bathroom resource

    In association with

    Discover how Croda products transform your bathroom from disarray to a fully functionable and clean bathroom with this resource explaining the chemistry behind these products. Please note that some aspects of the resource are no longer interactive/functional.

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    It's a Gas: Part 2

    A series of short videos of fun demonstrations about the chemistry of the gases in our atmosphere, taken from a lecture by Dr. Peter Wothers of the University of Cambridge. Video: It’s a Gas: 12 - Respiration Video: It’s a Gas: 13 - Properties ...