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In this video the 3rd. row elements of the periodic table are reacted with oxygen, chlorine, bromine and sodium. This video examines a number of features and trends in the periodic table of elements, using graphics and footage of experiments.
30 minutes. PAL VHS tape
Cost: £24.00 + VAT + p. & p.
This video looks at the arrangement of electrons and how atoms combine. Includes: a history of the atom as seen by Dalton, Thomson, Rutherford and Bohr; the production of the first 18 atoms by addition of protons, neutrons and electrons; and finally 'How Atoms Combine' - an animated love story of chlorine and sodium.
1996 ASET Premier Award Winner
34 minutes. PAL VHS tape
Cost: £39.00 + VAT + p. & p.
This video illuminates the wonder and diversity of the carbon atom, starting with simple compounds and moving in logical sequence through to complex branched chains. The molecules are brought to life using 3-D graphics and illustrate many applications. The rules of nomenclature are explained and applied.
41 minutes. PAL VHS tape
Cost: £29.00 + p. & p. + VAT
Two companion programmes giving an introduction to aspects of chemical bonding.
Areas covered include: scientific categories used by chemists to classify substances; the role of electronegativity in determination of bond type; conductivity of salts as molten liquids and aqueous solutions; the covalent network using examples such as graphite and silicon dioxide; simple covalent molecular shapes; and properties of small and long chained covalently bonded compounds.
27 minutes. PAL VHS tape
Cost: £28.75 + p. & p. + VAT
The second programme looks at relative bond strengths and comparison of melting and boiling points. Other topic covered are: ethanoic acid dimer; dipole - dipole attraction; effect of charged plates; polar covalent compounds and the intermolecular hydrogen bond; liquefaction of gases; comparison of hydrogen bonding in water, ammonia vinegar and DNA; Van der Vaal's forces; metallic bonding in gold and silver; and explanations for metallic bonding.
18 minutes. PAL VHS tape
Cost: £30.00 + p. & p. + VAT
Describes how the sun's energy is converted into chemical energy by the endothermic photosynthesis reaction. Footage demonstrates traditional methods used to recover the energy as well as those under development. The chemical reactions involved in each process are illustrated and the concept of enthalpy is introduced.
Demonstrations include: simple production of coal and wood gas; internal and external combustion engines (animated); charcoal production and gas generator; the use of potassium carbonate solution to produce ethanol from the fermentation of starch; and ethanol production from wood.
23 minutes. PAL VHS tape
Cost: £28.75 + p. & p. + VAT
This programme is designed to stimulate the students' interest in and understanding of chemical processes. Areas covered include: effect of temperature; molecular models; phase changes and solutions; notations and conventions; altering equilibrium states and predicting changes; limestone caves; and carbon, carbon dioxide and systems far from equilibrium e.g. Belousov-Zhabotinsky
23 minutes. PAL VHS tape
Cost: £28.75 + p. & p. + VAT
This programme looks at environmental issues from a chemical perspective. The following elements and compounds are studied:
(i) calcium and magnesium including: the leaching of calcium and magnesium from limestone with carbonic acid; lathering of soap in rain water and hard water; and water softening agents
(ii) phosphorous and nitrogen: biochemical oxygen demand; and algae and eutrophication
(iii) sulphur: metal ore smelting in Tasmania which lead to overall deforestation due to acid rain at turn of the century; and the London smogs (animated)
(iv) photochemical smogs
(v) ozone - its role in UV A & B protection and effect of chlorofluorocarbons (animated)
34 minutes. PAL VHS tape
Cost: £28.75 + p. & p. + VAT
The arrangement of electrons in atoms determines the behaviour and chemistry of the atoms. The programme looks at the following: ionization by electron bombardment; light emission from hot electrons in atoms; hydrogen spectrum; electron diffraction; quantum mechanical model; Schrodinger wave equation; and spatial orbital models and molecular geometry.
27 minutes. PAL VHS tape
Cost: £28.75 + p. & p. + VAT
An excellent example of the scientific process being used on a problem - observations, predicting the future and testing the predictions. (A subtitled version of this programme is also available.)
30 minutes. PAL VHS tape
Cost: £27.00 + p. & p. + VAT
This programme looks at the inside of the nucleus of the atom. Topics considered include: the nucleus - models, density, atomic mass unit; isotopes caused by different neutron members; nuclear stability, nuclear force and mass defect; radioactivity, alpha, beta, gamma radiation; beta decay - neutron turning into a proton; alpha decay and gamma decay; half-life and transmutation; nucleons and quarks; and the uranium decay series.
21 minutes. PAL VHS tape
Cost: £25.00 + VAT
Fission, fusion, reprocessing and disposal are looked at in this video.
This video considers the practical application of nuclear energy, using footage from nuclear power stations and fusion laboratories. The topics considered include: fission -thermal and fast breeder reactors; fusion - Coulomb repulsion, plasmas and magnetic bottles, internal confinement by laser bombardment; reprocessing; and disposal.
32 minutes. PAL VHS tape
Cost: £29.00 + VAT
Chemical reactions involve the transfer of electrons from one species to another. This programme looks at the following - oxidation number, half equations, redox equations, standard redox potentials.
Demonstrations include copper and aqueous silver nitrate; aluminium production; chemiluminescence and luminol; liquid oxygen; chromium trioxide and ethanol; magnesium and oxygen; sequential reduction of aqueous manganate (VII) to aqueous manganese (II); electrode potentials and copper, zinc and hydrogen half cells; copper and zinc metals with zinc and copper (II) aqueous solutions; and the lead acid battery (animated).
27 minutes. PAL VHS tape
Cost: £28.75 + p. & p. + VAT
This video looks at the technical response to changing community standards on sewage treatment over the past 40 years.
Areas covered are: biological treatment of sewage (filtration, clarification, trickle beds and BOD, anaerobic treatment of solids); and the chemical and biological removal of phosphorous (used pickle liquor and activated sludge).
22 minutes. PAL VHS tape
Cost: £29.50 + p. & p. + VAT
This colourful lecture comprises a series of 'live' demonstrations.
1 Wizards Cauldron
Dry ice (solid carbon dioxide) is placed in a basic solution containing m - cresol purple indicator.
2 Nylon rope
Nylon thread is drawn from the reaction of sebacoyl chloride and 1,6 - diaminohexane
3 Cloth dyeing
A mixed fibre cloth is placed in a mixed dye solution. A variegated coloured cloth is produced
4 Sea water flasks
Solutions containing Methylene blue redox Indicator and glucose are shaken
5 Liquid oxygen
The colour of liquid oxygen is examined. Cotton, cork and cigarettes are then combusted in liquid oxygen
6 Chromium trioxide and ethanol
Ethanol is added to chromium trioxide
7 Gun cotton
The combustion of ordinary and nitrated cotton wool is compared
8 A pouring race
A gel produced by the addition of ethanol to saturated calcium acetate (ethanoate) confounds a race
9 Old Nassau reaction
A series of solution colour changes is demonstrated. Species used are, iodate, thiosulphate, iodide, sulphate, mercury (II) and starch
10 Decomposition of hydrogen peroxide
Manganese dioxide is added to a mix of hydrogen peroxide and detergent. Hydrogen peroxide is decomposed producing oxygen and copious amounts of foam.
11 Chemical rainbow
Homogenous catalysis is demonstrated by the reaction of sodium thiosulphate and hydrogen peroxide in two flasks containing universal indicator solution, with and with out ammonium molybdate as catalyst
12 Oxidation of methanol
Hot platinum gauze is suspended over methanol
13 Oscillating reactions
Spatial (addition of malonic acid & potassium bromate solution to large measuring cylinder containing dil. Sulphuric acid) and temporal oscillating reactions are observed
14 Flash bulbs
Energy from an electrochemical cell is used to initiate the reaction of magnesium and oxygen contained in a flash bulb
15 Luminol
Luminol is oxidised by the addition of dimethyl sulphoxide to produce a cool blue light
16 Flash-Bang Tubes
The reaction between carbon disulphide and nitrogen monoxide is carried out in increasingly larger tubes yielding blue flashes and booms
60 minutes. PAL VHS tape
Cost: £30.55 + p. & p.
Updated in 1994, this video tackles a concept students often find difficult with demonstrations and analogies.
Topics covered include: reaction of substances in different proportions; ignition of various mixtures of hydrogen and oxygen; nuts and bolts analogy to show fixed proportions; the Mole and Avogadro's number; and using the Mole to calculate chemical reactions.
19 minutes. PAL VHS tape
Cost: £29 + VAT
This programme looks at some of the key experiments performed between 1870 and 1940 to establish the structure of the atom.
Demonstrations and topics include: the cathode - ray tube (maltese cross, paddle and different gases and metals as cathodes); Thomson's experiment; Millikan's oil drop experiment (animated); canal - rays (positive ion stream), the positive ion gas discharge tube and mass spectrometer (animated); Rutherford's gold foil experiment (animated); the Bohr model; and orbitals and the quantum mechanical model.
28 minutes. PAL VHS tape
Cost: £28.00 + p. & p. + VAT
How nylon is spun and woven into different textiles.
Designing and engineering the properties of nylon to suit different uses from textiles to tractor tyres. This video looks at the polymerisation process extrusion, spinning and drawing, weaving, knitting and dyeing. The programme ends up looking at market research into customer needs, garment design and manufacture.
25 minutes. 1997 PAL VHS tape
Cost:
This video examines in a very practical way the means we have available to protect our environment. The video looks at products in everyday use, explores their impact on the environment and discovers ways to avoid harming it. The video then demonstrates how products may cause harm during their manufacture, use and disposal. Students are encouraged to examine familiar products and consider practical alternatives.
60 minutes. 1992 PAL VHS tape
Cost:
Radioisotopes have an important role in society today. The ability of radiation to pass through matter allows radioisotopes to be applied in many different ways. This video examines the use of radioisotopes in medicine (diagnosis, radiotherapy) and industry (eg materials testing). Radioisotope manufacture is described and radiation safety is discussed in different contexts. This video builds on information presented in the existing video 'Nuclear Physics', but also includes revision of radioisotopes and their properties. Revision topics include the definition of isotopes and radioisotopes, penetration of radiation, ionising versus non-ionising radiation, sources of radiation and half-life.
25 minutes 2001 PAL VHS tape
Cost: £47.00 inc. VAT
This video looks at the particle model and the kinetic theory as applied to the following; stacking-crystals, angles that can be predicted by the ionic radii; temperature-particles and kinetic energy; solutions-the effect of dilution on a coloured solution; precipitation-crystal formation and particle stacking, the lead tree; movement-Brownian motion, spreading of smells, coloured gas diffusion, osmosis, rocket motor. Part 2 of the video looks at the mass of gas; pressure temperature and volume; kinetic energy and momentum.
30 minutes 1998 PAL VHS tape
Cost: £52.88 inc. VAT
A parody of a James Bond movie. Golden Metallic Bond is sent off to investigate why carbon, nitrogen and other atoms are training themselves into other types of bonds. He discovers their bond school and university, finding that they are all working towards 'Project D'. In the finale, Bond is shown around a giant DNA. All the standard cliches and puns are used to contrive a wave showing each type of bond.
'ATOM' Award winner 1999. Gold Award, Beijing Science Festival 2000.
28 minutes 1999 PAL VHS tape
Cost: £61.10 inc.VAT
physical and chemical changes in cooking are looked at in this video. Topics looked at include: aeration; denaturation; coagulation; gelatinisation; browning reactions; emulsification; crystallisation. Chef and lecturer Louis Ferguson illustrates these processes as he whips up an egg sponge.
90 minutes at 2000 of PAL VHS tape
Cost: £44.65 inc.VAT
The careers addressed in this video include: meteorology; food technology; physiotherapy-as an example of the many health care careers that draw on aspects of chemistry and physics: mechanical engineering; electrical engineering; chemical engineering; environmental engineering; civil engineering including plant operation; coastal engineering; geology; and mining.
22 minutes 2000 PAL VHS tape
Cost: £47.00 inc. VAT
Insights into the history of our solar system. Four and a half billion years ago in a gigantic cloud of dust and gas out there in the Milky way, chunks of matter began to shape, form, burn and melt. We look at differences between comets, meteorites and asteroids. The effects of meteorites on the dinosaurs and the shape of our planet's surface. The discovery of iridium concentrations in rock strata and their links to meteorites. Satellite images of craters in Siberia, Mexico, Canada, Australia and Namibia. Computer generated images of meteorites crashing and moving across glaciers. Chrondites, containing amino acids, supplying the original matter of our solar system .
60 minutes 199080 PAL VHS tape
Cost: £35.25 inc.VAT
Nature makes and breaks calcium carbonate. From the bottom of the oceans through underground caves and up to the craggy peaks of the Alps, limestone is in a constant cycle of formation and decay. Examples from our natural world and graphic particle models are used to explain the limestone cycle processes in this clear and relevant programme.
40 minutes 1994 PAL VHS tape
Cost: £35.25 inc. VAT
In Fiji the waste from a brewery was causing environmental problems. A boys home project set out to utilise the waste as much as possible. The plant material in the waste was first fed to mushrooms that broke down the lignin. The cellulose could then be digested by pigs. The waste from the pigs went into a tank and generates methane to be used as gas. The digested sludge then grows algae in a pond and fish feed on this. The waste water is clean enough to release into the environment
14 minutes 1999 PAL VHS tape
Cost: £35.25 inc. VAT
The search for endless energy
World supplies of fossil fuels are running out. Nuclear power has fallen by the wayside as a wide scale future energy source. This video highlights the work of front-line renewable energy research scientists and explores leading commercial applications. It also examines: what renewable energy is; the future of fossil fuels; the purest forms of renewable energy-those driven by the including solar photovoltaic, solar thermal and wind energy; the concept of energy pay back; and social issues. Produced with assistance from Energy Australia and the New South Wales Department of Education.
Cost: £
With iron and steel all around us it is no wonder that it originally comes from nature. This programme looks at the manufacturer of iron and steel from iron ore. It illustrates following processes and concepts: reduction, using carbon as a reducing agent; the destructive distillation of coal through pyrolysis; the production of coke in a coking plant; charging of the furnace in the manufacturing of pig iron; removal of impurities through the Bessemer process to make steel; recycling of scrap metal using an electric furnace; and casting of molten steel .
40 minutes 1999 PAL VHS tape
Cost: £35.25 inc. VAT
The software package installed directly on a hard disk drive allows the user to view some or all of Classroom Videos material. The material is stored in MPEG-1 format and an interface allows filtering and/or searching by keyword. Images can be played full or small screen, paused or captured. The teacher's guide can be printed, searched or text captured. For more information contact: sales@classroomvideo.co.uk
System requirements:
PC only, Pentium II, 200MHz, 32MB RAM, sound card, 4X CD-ROM drive
Cost: price upon application
This video looks at fractional distillation, desulphurisation and cracking. From the small town of Titusville, USA mineral oil refining has come a long way. This programme looks at the following topics: fractional distillation; petrol, kerosene, light oil, diesel, lubricating oil and bitumen; detection and removal of sulphur; the process of thermal cracking; straight chain, branched chain, cycloalkanes and aromatic hydrocarbons; and isomerisation and catalytic reforming.
30 minutes PAL VHS tape
Cost: £35.25 inc. VAT
Key experiments performed between 1870 and 1940, and concepts that established atomic structure, are considered in this video. Topics include cathode ray tubes, canal rays, mass spectrometer, Thompson's plum pudding model, Rutherford's gold foil experiment, the Bohr model and the orbitals and quantum mechanical model.
19 minutes 2003 PAL VHS tape
Cost: £30.00 + VAT + p&p
Ionisation, Electronegativity, Activity Series are explored with the mad atoms family in this video.
The following topics are looked at in this video: ionisation energy - the work required to remove an electron for an atom; electronegativity - this is the number describing a particle's ability to retain an electron in a chemical reaction; activity series - the ability of atoms to hold onto their electrons is also expressed in the activity series of the elements; and the concepts of electron transfer and voltage production in cells are explored at their simplest levels.
14 minutes 2003 PAL VHS tape
Cost: £30 + VAT + p&p
Redox reactions in extracting Metals from Ore are explained in this programme.
Each metal can be oxidised and does so differently due to it's different reactivity. The extraction of metal is a reversal of this process called reduction. Areas covered include: the activity series of metals; extraction of copper by roasting; extraction of zinc by roasting and electrolysis; and extraction of aluminium by electrolysis.
23 minutes 2003 PAL VHS tape
Cost: £30.00 + VAT + p. & p.
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