Terry Cash Books

Electricity and magnets
Electricity and magnets

By Terry Cash

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Describes the discovery of electricity, how it is generated, and the links between electricity and magnetism. Includes instructions for experiments.

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Sound
Sound

By Terry Cash

Average: 0.00, 0 Ratings

Introduces the principles of sound and includes instructions for a variety of experiments examining such topics as echoes, acoustics, and the speed of sound.

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What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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