Sally M. Walker Books

Ruedas Y Ejes wheels And Axles Libros De Fisica Para Madrugadores
Trabajo work Libros De Fiscia
Fireflies Early Bird Nature Books
Sea Horses Early Bird Nature Books
Ostriches and Other Flightless Birds
Ostriches and Other Flightless Birds

By Sally M. Walker

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Describes the formation and movement of different types of glaciers, their effects on the land, and how scientists study glaciers.

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Water up, water down
Water up, water down

By Sally M. Walker

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Describes the hydrologic cycle and its importance to life on Earth.

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Volcanoes
Volcanoes

By Sally M. Walker

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Describes volcanoes, where they form, the kinds of lava and landforms they create, and how volcanologists are learning to predict eruptions.

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Earthquakes
Earthquakes

By Sally M. Walker

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Bessie Coleman
Bessie Coleman

By Sally M. Walker

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Earthquakes Earthwatch
Earthquakes Earthwatch

By Sally M. Walker

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