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In 1872 Robert Angus Smith, the first British air pollution inspector, coined the phrase 'acid rain' when he found sulphuric acid in the rain around Manchester. It took a further 100 years for it to be linked with damage to the environment. But the latest research suggests that factors other than acid rain, such as changing patterns of land use and the action of ozone in the presence of sunlight, may be more damaging. This video looks at the research.
30 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
Acid solutions are frequently used in everyday life. Less familiar is the use of bases. This video describes how an acid can donate a proton only when a proton acceptor - a base - is present. Such reactions are called acid-base reactions. Limestone can be differentiated from quartz and gypsum with the help of an acid-base reaction. In order to classify metals the different reactions are exposed to an acidic solution. Copper and gold do not react with diluted acid, therefore they are classified as precious metals. Most of the other metals are non-precious and will corrode under the influence of dilute acidic solutions.
15 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
This video is divided into two sections.
Formation: students will discover how igneous, sedimentary, and metamorphic rocks as well as minerals are formed. They will begin to realise the uniqueness, beauty and characteristics of the earth's resources.
Importance to humans: explains why the study of rocks and minerals is important. From everyday uses, such as building materials or as fuel sources, to our fascination with precious minerals and gems, students begin to realise how a detailed understanding of this science can become a fascinating career or a hobby.
20 minutes. PAL VHS tape, DVD-R
Cost: £29.95 + p & p + VAT
Chemical reactions can be affected by the addition of substances that take no part in the reaction itself. In chemistry it is common to use substances that accelerate the chemical reaction. All living things also contain catalysts called enzymes. These enzymes lower the activation energy for metabolic reactions so that metabolic processes can take place at low temperatures. This programme shows that catalysts play a vital role not only in manufacturing technology, but also in the metabolic reactions of living things.
12 minutes. PAL VHS tape, DVD-R
Cost: £24.95 + p & p + VAT
A series of six programmes looking at the various aspects of chemistry covered at KS4 science of the national curriculum and GCSE chemistry.
Set of 6 DVDs, CD-ROMs or PAL VHS tapes
Cost (DVD): £199.95 + p & p + VAT
Cost (CD-ROM): £139.95 + p & p + VAT
Cost (VHS tape): £139.95 + p & p + VAT
This programme introduces students to the basic characteristics of matter. Included are the concepts of mass, density, weight and inertia; the differences between elements, compounds, substances and solutions; the unique physical properties (boiling and freezing points, conductor or insulator, solubility hardness, etc.,) and chemical characteristics (reactivity, flammability, acid or base, combustibility, etc,) of different types of matter and the four states of matter - solid, liquid, gas, and plasma.
22 minutes. DVD, CD-ROM, PAL VHS tape
Cost (DVD): £39.95 + p & p + VAT
Cost (CD-ROM): £29.95 + p & p + VAT
Cost (VHS tape): £29.95 + p & p + VAT
Quality animation and graphics are used in this programme to explain how compounds are formed by either ionic or covalent bonding; the difference between the various groups of compounds such as acids, bases and hydrocarbons; chemical formulas, chemical equations, and the conservation of matter. Also explored are exothermic, endothermic and neutralisation reactions. There are also exciting examples of why these processes and principles are important to our everyday lives.
24 minutes. DVD, CD-ROM, PAL VHS tape
Cost (DVD): £39.95 + p & p + VAT
Cost (CD-ROM): £29.95 + p & p + VAT
Cost (VHS tape): £29.95 + p & p + VAT
The programme begins by explaining the difference between mixtures and compounds. It then it goes on to explore solutions and define concepts such as solvent, solute, electrolyte, saturated solution, super-saturated solution, solubility and polarity. How solubility is affected by the polarity of the solvent and solute is illustrated with 3-D animations. Students are also introduced to mixtures, such as suspensions and colloids, and how mixtures can be separated by filtering, distillation and settling.
22 minutes. DVD, CD-ROM, PAL VHS tape
Cost (DVD): £39.95 + p & p + VAT
Cost (CD-ROM): £29.95 + p & p + VAT
Cost (VHS tape): £29.95 + p & p + VAT
This programme looks at various types of reactions: exothermic and endothermic, spontaneous and non-spontaneous, and how variables, such as temperature, concentration and the presence of a catalyst affect the rate of chemical reactions. The concepts of chemical equilibrium and the reversibility of reactions are also introduced. The importance of chemical reactions in biological processes, like photosynthesis and in industrial applications are also examined.
27 minutes. DVD, CD-ROM, PAL VHS tape
Cost (DVD): £39.95 + p & p + VAT
Cost (CD-ROM): £29.95 + p & p + VAT
Cost (VHS tape): £29.95 + p & p + VAT
Dynamic animation brings to life the invisible world of the atom and explains how models of the atom have changed over time. The programme looks at the atomic models of Dalton, Rutherford, Bohr, and contemporary physicists. Also outlined are important concepts such as sub-atomic particles, anti-particles, isotopes, atomic number, mass and radioactive particles. It concludes by showing how radioactive isotopes are used to detect and fight disease, monitor the flow of pesticides through the environment and to date fossil remains.
22 minutes. DVD, CD-ROM, PAL VHS tape
Cost (DVD): £39.95 + p & p + VAT
Cost (CD-ROM): £29.95 + p & p + VAT
Cost (VHS tape): £29.95 + p & p + VAT
The periodic table contains a wealth of information and helps students learn how to access it. The programme explains the periodic law and the significance of the rows and columns of the periodic table and also outlines the physical and chemical qualities of the members of each group of elements, from the alkaline metals to the noble gases. The importance of various groups of elements in industrial applications and in the environment is highlighted.
25 minutes. DVD, CD-ROM, PAL VHS tape
Cost (DVD): £39.95 + p & p + VAT
Cost (CD-ROM): £29.95 + p & p + VAT
Cost (VHS tape): £29.95 + p & p + VAT
Loosely carrying from the 'Chemistry Essentials Series', the 'Concepts in Science - Chemistry Series' specialises in looking at six areas covered at GCSE and A-level chemistry.
This series uses analogy and computer animation to introduce chemistry students to the concepts of chemical reactions. It explores and examines the theories of steady state, dynamic equilibrium, kinetic molecular theory, reaction tendencies and the equilibrium constant. The forward and reverse reactions of various chemical changes are illustrated, including the production of hydrogen iodide, hydrogen chloride and ammonia. Finally, through demonstrations of Le Chatelier's principle and the Haber process, students may gain a better understanding of the importance of chemical equilibrium to scientific study. The video is divided into six ten minute concepts as follows: unsteady steadiness, dynamic equilibrium, reaction kinetics, the equilibrium constant, the Haber process.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
The Mol Concept clarifies the reasoning behind the historical development of the mol concept - the mol is the ultimate standard container for directly comparing large numbers of atoms - and it opens the way to understanding chemical reactions at the molecular level. Each program uses animation of scientific concepts and analogies from daily life to simplify the material. Exercises in reasoning, using such theories as Gay-Lussac's law of combining gas volumes and Avogadro's hypothesis, encourages class discussion. Through a process of postulation and refutation, students will discover a practical working tool for comparing atoms in chemical reactions. The video is divided into six ten minute concepts as follows: relative mass, gas volumes, combining gas volumes, Avogadro's hypothesis, relative atomic mass, the mol.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
Beginning with a look at the structure of carbon, the atom common to all living matter, this series investigates the properties of carbon and some of its fascinating uses in fuels, plastics, and industry. Computer animation is used to illustrate bonding and reaction at a molecular level and helps simplify complex concepts. The video is divided into six ten minute concepts as follows: carbon the compromiser, the shape of carbon, carbon bonding, fixing fuels, polyethylene, and harvest of enzymes.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
A sequel to Organic Chemistry I, this series uses sophisticated three-dimensional animation to show how the molecules and properties of compounds lend themselves to a wide variety of industrial applications. Since the number of a synthetic compounds being developed is steadily increasing, the series concludes with a programme on the benefits and risks of these materials. The video is divided into six ten minute concept as follows: fibres, soaps, glues, ASA(? Ed.), cosmetics, and life after chemistry.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
In six short programmes, chemistry students will learn the importance of the electron to chemical compounds. Through computer animation, the series explores the development of the atomic model by scientists such as Bohr, Rutherford and Planck, and relates their contributions to an understanding of the functions of electrons. It illustrates various aspects such as energy levels, orbitals, charges, relative mass, bonding and electron configuration, explaining clearly and concisely how the properties of an atom may be predicted by studying its electronic configuration. The video is divided into six ten minute concepts as follows: introducing the players, the Rutherford-Bohr atom, electron arrangement, how atoms bond, molecular substance and covalent crystals, and metals and ionic solids.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
This lively series commences by taking chemistry students inside the common, every day battery and explaining the basic principles involved. It then illustrates the terminology and processes of electrochemical reactions, how half-cell potentials can be determined and how electrochemistry is at work in the commercial Leclanche cell, as well as in the processes of corrosion and electrolysis. The video is divided into six ten minute concepts as follows: building blocks of electrochemistry, electrochemical cells, designing electrochemical cells, commercial electrochemical cells, corrosion, and electroplating.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
The following programmes were taken from the Concepts in Science - Physics series.
This instructive series shows step-by-step, how interest in cathode rays led scientists to discover X-rays, then alpha, beta, and gamma radiation, and finally to explore the conversion of matter into energy. With the aid of computer animation the programme helps clarify such concepts as nuclear fission and nuclear fusion and it gives students a straightforward explanation of how a nuclear reactor works, and an examination of the difficulties created by nuclear waste products. The video is divided into six 10 minute concepts as follows: (1) the discovery of radioactivity; (2) properties of Becquerel rays; (3) Natural transmutations; (4) energy from the nucleus; (5) electrical energy from fission; (6) nuclear by-products.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
These programmes explore the history and development of the model of the atom, from the hypotheses of the early Greek philosophers to the wave mechanical model of modern atomic physicists. Through animation, the experiments by pioneer atomic scientists (such as Bohr, de Broglie, Faraday, and Rutherford) using electricity, radioactivity, and spectroscopy are recreated. The implications of their discoveries are discussed. The video is divided into six 10 minute concepts as follows: (1) the earliest models (2) smaller than the smallest; the Rutherford model; (4) the Bohr model; (5) spectra; and (6) the wave mechanical model.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
Wave particle duality traces the development of the various theories advanced to explain the behaviour of light, from the concepts of the ancient Greeks to the proven models of today. The contributions of Isaac Newton, Christian Huygens, Thomas Young, Jean Foucault, James Maxwell, Max Planck, Albert Einstein, Arthur Compton, Geoffrey Taylor, and Louis de Broglie are outlined, as are other reasons for the gradual acceptance of both the particle and the wave models and their eventual combination. The programmes use computerised animation to explain and illustrate the different concepts. The video is divided into six 10 minute concepts: (1) the particle model; (2) the wave model; (3) the electromagnetic model; (4) the quantum idea; (5) photons; (6) matter waves.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
Most scientists agree that the earth is gradually warming but they are uncertain as to how much warmer it will become. This programme looks at the many facets of global warming explaining that some warming occurs due to the greenhouse effect, the natural mechanism which keeps the earth at a comfortable temperature. In a detailed discussion, the programme examines the three components of the earth's climate system: clouds, oceans and plants. Since these components help cool down and heat up the earth naturally, it is important to preserve their ecological role by reducing the release of heat trapping gases.
12 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
Participating in a science fair can be a very valuable experience. It requires organisation, planning, creativity, and many hours of work, but the results are well worth the effort.
The purpose of this programme is to acquaint students with the many steps and procedures involved in preparing a Science Fair project for the school. The emphasis is on the importance of long-range planning and scheduling.
In addition to helping students become organised in their approach, the programme will also describe how to go about selecting a topic, conduct research, develop a hypothesis, incorporate the scientific method into the project, organise notes, set up and conduct an experiment to test theories, organise and write abstract and research papers, construct and design an exhibit, and conduct an oral presentation to judges. In addition to the video, there are blackline masters included to help reinforce information.
25 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
Everything on the earth is made up of tiny atoms and the most common atom is oxygen. As we explore the nature of oxygen we learn about atoms, molecules and chemical reactions. Oxygen like any atom has three forms: solid, liquid and gas.
15 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
An interactive series which deals with basic concepts of science and technology, addressing fundamental social issues that arise from scientific and technological developments. In particular, the series is designed to assist students in developing critical thinking about science and technology options being used today, by examining basic applications and pointing out some of the unforeseen problems or complications that often emerge as a consequence.
Package includes: 3 X 1-hour videos on toxic waste, water, biotechnology; 1 introductory video; 1 comprehensive 60 page teacher's guide.
60 minutes per video. PAL VHS tape
Cost: £29.50 + p & p + VAT per video
Exciting 3D computer animation shows the dynamic process of photosynthesis at a molecular level. Starting with historic discoveries, this mini-series examines the absorption of light by plants, and follows the energy pathways to the production of carbohydrates and other organic materials. The programme also develops the Calvin cycle as it functions in carbon 3 and carbon 4 plants, and the remarkable fluid transport system that delivers water and nutrients throughout the plant structure. The video is divided into six 10 minute concepts as follows: (1) seeing the light; (2) absorbing the light; (3) the light reaction; (4) the dark reaction; (5) C 3 and C 4 plants; and (6) the fluid transport system.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
Biology students will quickly grasp the importance of proteins as the basic building blocks of life and the fundamental role that protein synthesis plays in all living things from this series. Each programme explores one aspect of the process, from the manufacture of DNA to the roles of the messenger and transfer RNA. Computer animation provides clear demonstrations that makes this complex subject easily understood. The video is divided into six 10 minute concepts as follows: (1) protein - the stuff of life; (2) DNA - the molecule of heredity; (3) DNA replication - the repeating formula; (4) RNA synthesis; (5) transfer RNA; (6) ribosomal RNA.
60 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
All living things - all organisms - must have carbon atoms to carry on their life processes. At the same time, there is a finite limit to the number of carbon atoms on the planet. How then is it that life has been able to continue for millions of years without running out of the all-essential carbon atoms?
With live-action footage supported by state-of-the-art computer graphics this programme answers that fundamental question by explaining the carbon cycle - that all important natural process by which carbon atoms are recycled back and forth between the living and non-living realms of nature.
The greenhouse effect is explained in terms of the role of photosynthesis and the unnatural imbalance of carbon dioxide in the Earth's atmosphere.
12 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
A series of 4 programmes mainly relating to geographical issues. The third in the series concerns volcanoes covered in KS4 science and at GCSE level.
The earth, the Environment and Beyond Series (3): What are Volcanoes?
Volcanoes have always awed mankind with their unpredictable eruptions. The programme that takes us inside a volcano to the source of magma and we see how it emerges. We learn to differentiate basic types of volcanoes, and locate volcanic zones around the world.
15 minutes. DVD-R, PAL VHS tape
Cost (DVD-R or VHS tape): £29.95 + p & p + VAT
Water is one of the most important compounds. Not only does it cover most of the planet, it is essential to the life processes.
The programme, begins by explaining the relative scarcity of all-important fresh water. Through a wide variety of location video, the complete water cycle is shown and explained. Computed graphics help illustrate the water cycle. Various solutions to water pollution are offered.
11 minutes. PAL VHS tape
Cost: £24.95 + p & p + VAT
VisChem is a research and development project for the production of teaching resources in chemistry based on chemicals and educational research. The project is based on the philosophy that understanding chemistry involves being able to link what one sees in the laboratory to what one imagines is happening at the molecular level. Only then can these observations be communicated meaningfully using former nurse and equations. The animations used are unique in terms of attention to detail based on chemical research. They are designed to target misconceptions identified in research on student learning. Artistic licence issues with care and for educational reasons only.
Complete set of 3 programmes: DVD-R, PAL VHS tape
Cost (DVD-R): £74.95 + p & p + VAT
Cost (VHS tape):£74.95 + p & p + VAT
This visual resource aims to help students understand concepts and construct models at a fundamental level presenting three dimensional, dynamic animations. The video portrays the structures of the three states of water (solid, liquid and gaseous) and the melting, evaporation and boiling processes at the molecular level using computer generated animations. The teaching package also includes extensive notes, lesson plans, activities, question sheets and background information. This programme was produced to enable students to develop mental models based on images and the molecular level.
12 minutes. DVD-R, PAL VHS tape
Cost (DVD-R): £34.95 + p & p + VAT
Cost (VHS tape):£34.95 + p & p + VAT
This programme is divided into three parts each moving from the laboratory level to the molecular level and then to the symbolic level. By first looking at the reaction of potassium thiocyanate solution with iron (III) nitrate solution, ionic equilibrium is explained. Next acid-base chemistry is shown shown using ethanoic acid as an acid, ethanoate ion as a base and ammonia as a base. The last part of the programme deals with redox chemistry and a reaction of copper metal and silver nitrate solution.
25 minutes. DVD-R, PAL VHS tape
Cost (DVD-R): £34.95 + p & p + VAT
Cost (VHS tape):£34.95 + p & p + VAT
This programme is divided into three parts, each moving from the laboratory level to the molecular level and then to the symbolic level. After brief navigation maps and advance organiser the programme first looks at the difference between melting and dissolving using the example of sodium chloride. The next part examines the reaction of sodium chloride solution with silver nitrate to exemplify precipitation. Finally ammonia is added to a solution of copper (II) nitrate copper (II) hydroxide gel. The successive complexation of the copper (II) ion by ammonia molecules serves as an important model for complexation.
25 minutes. DVD-R, PAL VHS tape
Cost (DVD-R): £34.95 + p & p + VAT
Cost (VHS tape):£34.95 + p & p + VAT
Ideal to use as a resource in the classroom or lecture theatre, the VisChem CD-ROM contains all the animations from the above video series and can be used with textbooks or any other resource that provides explanations of the molecular world.
Dual platform CD-ROM: PC/Mac
Cost: £35.00 + p & p + VAT
This programme is divided into two sections: introduction to geology-looks at the diversity of our planet's surface, it's internal structure, definitions of geology, and historical developments which help explain ocean/continental formation; and mountains, volcanoes and earthquakes-demonstrates the dynamics of plate tectonic theory. Concepts such as folding and buckling, subduction, volcanoes and earthquakes are all explored in this video. Includes dramatic location footage, colourful graphics, animation, maps and original music.
20 minutes. DVD-R, PAL VHS tape
Cost (DVD-R or VHS tape): £29.95 + p & p + VAT
Cost (Complete set on DVD-R or VHS tape): £74.95 + p & p + VAT
For ease of lesson planning, this video programme is divided into three major sections: physical weathering-discovers how plants, animals, ice, water and air all contribute to the disintegration of rocks; chemical weathering-looks at the effects of oxidation and carbonic acid weathering, this section also includes a journey into wondrous limestone caverns to see the effects of chemical weathering; and erosion-looking at examples such as Yosemite Valley, Bryce Canyon and the Grand Canyon this section helps students realise the long term effects of erosion and weathering in all their grandeur.
20 minutes. DVD-R, PAL VHS tape
Cost (DVD-R or VHS tape): £29.95 + p & p + VAT
Cost (Complete set on DVD-R or VHS tape): £74.95 + p & p + VAT
This video programme is divided into two sections: formation-in this section students will discover how igneous, sedimentary and metamorphic rocks as well as minerals are formed. They will begin to realise the uniqueness, beauty and characteristics of the Earth's resources; importance to humans-this section explains why the study of rocks and minerals is important. From everyday uses such as building materials or as fuel sources to our fascination with precious minerals and gems, students begin to realise how the detailed understanding of the science can become a fascinating career or hobby.
20 minutes. DVD-R, PAL VHS tape
Cost (DVD-R or VHS tape): £29.95 + p & p + VAT
Cost (Complete set on DVD-R or VHS tape): £74.95 + p & p + VAT
The most common element on the planet, oxygen, is key to the survival of most organisms. This video consists of a combination of live action video taken in a wide variety of interesting locations and computer graphics accompanied by an engaging narration to teach about oxygen and the oxygen cycle. Opening with a discussion of the oxygen atom, the video moves on to an explanation of photosynthesis as a source of atmospheric oxygen and to explain the dynamics of oxidation reactions. The relationship between photosynthesis and respiration is explained. The video ends with a discussion of how the oxygen cycle recycles oxygen atoms.
15 minutes. PAL VHS tape
Cost: £29.50 + p & p + VAT
Earthquakes occur every day, but most are too weak to feel. This programme shows how the Richter scale is use to describe the strength of seismic activities, how seismic waves originate from a focus and travel through the Earth's crust. Plate tectonics, and how they relate to earthquakes, are discussed along with the identification of seismic zones .
15 minutes DVD-R, PAL VHS tape
Cost (DVD-R or VHS tape): £29.95 + p & p + VAT
Scientists from the British Antarctic Survey are conducting the most comprehensive study ever attempted of a little-known group of volcanic islands in the South Atlantic. These remote islands have been rarely visited since they were discovered in 1775 by Captain Cook 2000 kilometres south-east of the Falkland Islands. Their unique significance is the story that they can tell about the composition, structure and movement of the Earth's crust.
30 minutes PAL VHS tape
Cost: £29.50 + p&p + VAT
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