Sally Hewitt Books

Air and flight

By Sally Hewitt

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Discusses the properties of air, its necessity for life, environmental issues, and aerodynamics.

Time

By Sally Hewitt

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Discusses the different aspects of time and how it is measured, including days and nights, years, calendars, and clocks. Provides suggestions for related activities.

Weather

By Sally Hewitt

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Explains the causes of changes in the weather, discussing such phenomena as sunshine, clouds, rain, snow, and storms and how they are observed and predicted.

It s Science You and Your Body

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The five senses

By Sally Hewitt

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Simple text and suggested activities provide information about the five senses possessed by humans, how they are used, and how they compare to those of animals.

You and Your Body It s Science

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The Greeks Footsteps in Time

By Sazly Hewitt, Sally Hewitt

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All Kinds of Animals It s Science

By Sally Hewitt

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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.