All Applications of chemistry articles – Page 6

  • Image
    Resource

    When chewing gum loses its flavour

    In association with

    This probelm-based learning resource is designed to help students to develop approaches which might lead to the discovery of what some of the unwanted tastes and smells in a specific foodstuff and how the causes of these could be tested for using analytical chemistry techniques. 

  • Image
    Resource

    Pale horse: analytical chemistry & forensics

    This problem-based case study sets analytical chemistry within the context of a forensic investigation of a suspicious death. 

  • Image
    Resource

    Small materials to solve big problems: nanochemistry

    In association with

    This context based case study investigates the use of nanomaterials for the development of commercial applications in the areas of medicine, materials and environment. It covers the synthesis, characterisation and application of nanomaterials in a variety of contexts. As part of the resource students are asked to investigate the use ...

  • Image
    Resource

    Future Cities project

    This problem-based case study sets chemistry within the ‘real’ context of a sustainable development project. This activity is designed so that all students are not working on exactly the same project with exactly the same data. Dynamic elements are introduced at three stages.

  • Image
    Resource

    Chemistry's interfaces: the nano frontier

    In association with

    This resource is designed as an introduction to the science of metal and semiconductor nanoparticles. It’s focused on level 1 and 2 students so it places a particular emphasis on the difference between the physical and chemical properties of the bulk form of materials, individual molecules and nanoparticles in the ...

  • Aluminium foil
    Resource

    Anodising aluminium

    In association with

    Explore an interesting application of electrolysis by anodising the oxide layer on aluminium foil to improve its corrosion resistance and, in the process, colour it with dyes.

  • Image
    Resource

    Making a photographic print

    In association with

    The light sensitive silver halides, silver chloride, silver bromide and silver iodide, are used to make photographic film and photographic paper. In this experiment, a photographic print is produced.

  • Image
    Resource

    Thermal decomposition of calcium carbonate

    In association with

    Calcium carbonate is strongly heated until it undergoes thermal decomposition to form calcium oxide and carbon dioxide. The calcium oxide (unslaked lime) is dissolved in water to form calcium hydroxide (limewater). Bubbling carbon dioxide through this forms a milky suspension of calcium carbonate.

  • Image
    Resource

    Journal articles made easy: Detect strep throat

    2015-07-14T14:17:55Z

    This article looks at detecting strep throat bacterium using touch spray mass spectrometry. It will help you understand the research the journal article is based on, and how to read and understand journal articles. The research article was originally published in our Analyst journal. Strep throat spotted in seconds ...

  • Image
    Resource

    Testing the hardness of water

    In association with

    Soap solution is used to measure the hardness of rain water, temporarily hard water and sea-water. The effect of boiling the hard water samples is investigated.

  • Image
    Resource

    Modern applications

    Inspirational chemistry book chapter ‘Modern applications’. This chapter suggests games, activities, practicals and demonstrations for teaching various topics, such as observing reactions, making new medicines and composite materials.

  • Image
    Resource

    The formation of a sol

    In association with

    A rusty-brown precipitate of iron(III) hydroxide is converted into a cherry-red iron(III) oxide sol (a colloidal suspension) 

  • Image
    Resource

    Developing a glue

    In association with

    Glue can be made from the protein in milk called casein. In this experiment you will prepare polymer glue from milk. The casein is separated from milk by processes called coagulation and precipitation.

  • Image
    Resource

    Experiments with hydrogels – plant water storage crystals

    In association with

    In this activity students investigate plant water storage crystals, a product that contains hydrogels – polymeric smart materials. The practical work is fun, and the results easy to see.

  • Image
    Resource

    Experiments with hydrogels – hair gel and disposable nappies

    In association with

    In these activities students investigate hydrogels – polymeric smart materials. They are found in many products, including disposable nappies and hair gel. The practical is fun to do and the results dramatic.

  • Potassium dichromate (VI) crystals
    Resource

    The 'breathalyser' reaction

    In association with

    Recreate an early ‘breathalyser’ test by passing ethanol vapour through a U-tube packed with potassium dichromate crystals and moistened with dilute sulfuric acid to and watch as it changes from orange of chromium(VI) through brown to green of chromium(III).

  • Set of four coloured fabric swatches
    Resource

    Dyeing three colours from the same dye bath

    In association with

    Illustrate the specific chemical interactions between the dye and the molecular nature of different fibres.

  • Image
    Resource

    Making glass

    In association with

    A sample of glass is made by heating a mixture of lead oxide, zinc oxide and boric acid strongly until it melts. The glass formed can be coloured by adding traces of various transition metal oxides.

  • Image
    Resource

    Making an alloy (solder)

    In association with

    Solder can be made by heating together the metals lead and tin. The hardness, melting point and density of the alloy can be compared to lead.

  • Image
    Resource

    What use is chemistry?

    The Inspirational chemistry chapter ‘What use is chemistry?’ This chapter suggests exercises for students to carry out to appreciate the importance of chemistry and how it affects our everyday lives.