Sandra Markle Books

Outside and inside rats and mice
Outside And Inside Spiders Outside Inside
Outside and Inside Birds
Outside and Inside Birds

By Sandra Markle

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Outside And Inside Dinosaurs
Wind scorpions
Wind scorpions

By Sandra Markle

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Introduces wind scorpions, describing their physical characteristics, life cycle, and behavior.

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Outside and Inside Snakes
Outside and Inside Snakes

By Sandra Markle

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Icky Squishy Science
Icky Squishy Science

By Sandra Markle

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Icky, squishy science
Icky, squishy science

By Sandra Markle

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Details numerous science experiments which can be done at home, explains the various scientific phenomena involved, and suggests further experiments.

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Creepy, spooky science
Creepy, spooky science

By Sandra Markle

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Presents an assortment of awesome experiments with information about the scientific principles involved.

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Weird, wacky, science
Weird, wacky, science

By Sandra Markle

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Presents facts revealing some of the strange and even weird aspects of humans, animals, and general science while also suggesting experiments related to this information.

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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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