Estelle Longfield Books

365 Science Experiments

By Estelle Longfield

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365 Science Experiments flexibound

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501 Science Experiments

By Estelle Longfield, Glen Singleton

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365 incredible science experiments

By Estelle Longfield, Glen Singleton

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Discover the secrets of science through hundreds of experiments that will challenge and entertain you. You will be amazed at how much you learn while having so much fun! Do you know how to make you...

Cool science experiments

By Estelle Longfield, Glen Singleton

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Book of experiments that has sections for astronomy, biology, chemistry, geology/geography, physics, and weather.

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

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.