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More by Sally M. Walker

Icon image Figuring Out Fossils

Figuring Out Fossils

Icon image Rocks' Journey

Icon image Marveling at Minerals

Marveling at Minerals

Icon image Researching Rocks

Researching Rocks

Icon image Studying Soil

Icon image Researching Rocks

Researching Rocks

Icon image Marveling at Minerals

Marveling at Minerals

Icon image Studying Soil

Icon image Underground Fire: Hope, Sacrifice, and Courage in the Cherry Mine Disaster

Underground Fire: Hope, Sacrifice, and Courage in the Cherry Mine Disaster

€25.21€17.65

Icon image River's Journey

River's Journey

Icon image Investigating Magnetism

Investigating Magnetism

Icon image Investigating Electricity

Investigating Electricity

Icon image Investigating Heat

Investigating Heat

Icon image Investigating Light

Investigating Light

Icon image Investigating Magnetism

Investigating Magnetism

Icon image Investigating Matter

Investigating Matter

Icon image Investigating Sound

Investigating Sound

Icon image Frozen Secrets: Antarctica Revealed

Frozen Secrets: Antarctica Revealed

€15.25€10.37

Icon image Investigating Electricity

Investigating Electricity

Icon image Investigating Heat

Investigating Heat

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