All Compounds and mixtures articles – Page 5

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    Making marbled paper

    In this practical, students create a marble effect on paper, using their knowledge of mixtures and hydrophobic solutions to explain the phenomena. Also, students use their evaluating skills to determine which method produces the best result.

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    Water drop art

    In this practical, students observe and report what happens when water is placed on waxed paper, and a splint or toothpick is positioned close to the droplets.

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    The Chemistry of Light: Part 1

    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: 01 - Introduction Video: The Chemistry of Light: 02 - Oil Lamps & Candles ...

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    Solutions

    This activity is designed to develop the students’ higher order thinking – particularly critical thinking skills – in the context of dissolving and solutions. The students have to apply some particle theory and logical reasoning to simple experimental observations.

  • Blue copper(II) sulfate solution in a glass beaker against a neutral grey-white background
    Class experiment

    Recovering water from copper(II) sulfate solution

    In association with

    Try this practical to introduce students to aqueous solutions by distilling water from copper(II) sulfate solution. Includes kit list and safety instructions.

  • 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
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    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 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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    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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    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.