Dan Keen Books

Science Fair Projects
Science Fair Projects

By Dan Keen, Bob Bonnet

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Earth Science
Earth Science

By Robert Bonnet, G. Daniel Keen

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Science Fair Projects
Science Fair Projects

By Dan Keen, Bob Bonnet

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Botany
Botany

By Robert L. Bonnet, Dan Keen, Bob Bonnet

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Science fair projects
Science fair projects

By Robert L. Bonnet

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Presents fifty-three simple experiments and projects revolving around space science, including topics such as seasons, the night sky, light, and flight.

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Science Fair Projects
Science Fair Projects

By Robert L. Bonnet, Dan Keen, Bob Bonnet

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Presents projects and experiments that use easy-to-find materials to explore the world of physics, covering such topics as temperature, energy flow, acceleration, sound, pendulums, momentum, magnet...

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Science Fair Projects
Science Fair Projects

By Dan Keen, Bob Bonnet

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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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