Thames and Kosmos

US$48.93
CHEM C500 takes you on an introductory tour through seven central areas in chemistry with more than 30 classic experiments. Learn about reactions between solids, liquids, and gases. Discover the colorful effects of acids and bases. Perform astonisishing "magic" tricks for your friends. Investigate metals and salts in electrochemical experiments with a 9-volt battery (not included). Learn for yourself how chemistry goes far beyond textbooks and laboratories, to explain occurrences that happen around us every day.
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US$269.95
This is the first science experiment kit to thoroughly explore alternating current in addition to the more commonly addressed direct current (DC), the unidirectional current from standard batteries. With this kit, you can safely experiment with the physical science theories and applications of electricity. Conduct 110 experiments to investigate electrical engineering from AC to DC.
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US$55.93

The electronic components in this kit include capacitors, resistors, transistors, LEDs (light emitting diodes), a phototransistor, a switch, 30 contact blocks, cable blocks, a battery holder, a speaker, and a sound integrated circuit. The 64-page, full-color experiment manual guides you through 70 circuit building experiments with easy-to-follow diagrams.

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US$139.93
In the kit, there are 45 topics with three experiments each: an easy introductory experiment, a more involved experiment, and a challenging experiment for more advanced students. In this way, the students are both encouraged and challenged. Some of the experiment topics include mass and volume, length and area, heat and temperature, the human body, chemical reactions, soil analysis, plants and seeds, the properties of water, light and lenses, refraction and reflection, pressure, flight, the phases of matter, density, buoyancy, force and motion, important properties of various chemicals, acids and bases, indicators, and more.
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