Why does a magnet stick to metal objects but not plastic? How can it pick up metal shavings but not wood chips? With the help of a magician, students learn all about magnetism. They discover what a magnet is, the properties of magnets, magnetic fields, and the types of objects that are attracted to magnets. Children learn what magnets are used for and in which simple machines they are found. DVD features include on-screen teacher’s guide and vocabulary plus chapter selections: (1) Introduction (2) What is a magnet? (3) Poles (4) Atoms (5) The earth is a magnet (6) Magnets push and pull (7) Kinds of magnets and uses of magnets (8) Review.
Subjects: Physical Science
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How Things Move
Roll, slide, bounce, and spin! Discover many different ways objects can move. Give your students a preliminary lesson in physical science with this fun program designed to get children thinking about pushes and pulls. Students enjoy learning about position, movement, and the forces used to make objects move. DVD features include on-screen teacher’s guide and vocabulary plus chapter selections.
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Properties of Matter, Part 1
Come join us in the “matter kitchen” as we learn that our entire world is made of matter, including things we don’t see, like the air we breathe. We learn to use our five senses to identify the properties of an object – size, weight, shape, color, and temperature. Students identify some of the tools used to measure the properties of matter. Finally, we learn that matter has mass and takes up space and that it can exist in different states – solids, liquids, or gases. DVD features include interactive quiz, slide show, video “clips” aligned to standards, on-screen teacher’s guide and vocabulary plus chapter selections: (1) Introduction (2) Five Senses (3) Identifying Properties of matter (4) Matter Can (5) Matter Analyzer (6) Matter has mass (7) Matter takes up space (8) Solids, liquids, and gases (9) Review.
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Simple Machines
When a group of children attempt to move their play fort, they realize that six simple machines make the work much easier by changing either force or distance. They learn to identify real-world examples of simple machines including the lever, pulley, wedge, wheel and axle, inclined plane, and screw. DVD features include on-screen teacher’s guide and vocabulary plus chapter selections.
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The Wonder of Sound
Through instrument, voice, and graphics, students easily discover how sounds are produced and students learn how we hear. Vibration is demonstrated, and children experiment with the way sound travels – in the air, through the ground, and under water. DVD features include on-screen teacher’s guide and vocabulary plus chapter selections.
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Science and War
Historians debate whether war is essentially destructive or constructive for the development of science. Certainly both world wars used scientists and science – with ever more destructive results. As for science, the result was the largest cooperative groups of scientists in history, something that is now labelled as Big Science.
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Science and War
Historians debate whether war is essentially destructive or constructive for the development of science. Certainly both world wars used scientists and science – with ever more destructive results. As for science, the result was the largest cooperative groups of scientists in history, something that is now labelled as Big Science.
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Chemical Analysis One
Chemical Analysis One uses sophisticated computer animation to give senior chemistry students a unique insight into the theory and operation of the three most commonly used tools in analytical chemistry: Atomic Absorption Spectrometry; Gas Chromatography; High Pressure Liquid Chromatography. The program outlines the need for quick, efficient, cost-effective and reliable techniques for testing a variety of chemical samples.
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Chemical Analysis Two
This program outlines the need for quick cost-effective and reliable testing of samples in industry, health, manufacturing and environmental applications. The program considers the use of the “Bomb” calorimeter, and students are shown how the Mass Spectrometer is used in conjunction with the Gas Chromatograph to identify substances such as carcinogenic compounds in soil.
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The Science in Cosmetics
Cosmetics are big business. They are used by almost every person walking on the Earth and by many students in your classroom. This program shows students how cosmetics are made and how they have been used for thousands of years. Bases, bulking agents, coloring agents, fragrances and preservatives are outlined. The making of an emulsion is demonstrated and the processes of distillation or solvent extraction explained. This is everyday science in action.