Thanks, NASA!

Thanks, NASA! book cover — NASA THANKS ROURKE Media Educational Tom Greve rourkeeducationalmedia com Teacher Notes available at rem4teachers com

Thanks, NASA! — page 1 — CHAPTER ONE Exploration Changing Perspectives of the Earth Humans have been exploring since the dawn of history In fact history itself is often marked by new findings or discoveries Any time a person explores a place nobody has ever been to before they increase humankind’s understanding of it This idea has propelled many of history’s greatest discoveries about the physical world we call Earth 4

Thanks, NASA! — page 2 — Scientific exploration helped determine that the world is round not flat It also helped map Earth’s continents oceans mountains caves and remote islands Until only very recently the greatest feats of exploration were limited to planet Earth itself Centuries ago exploration was done by ships sailing across the oceans to learn how the world was laid out 5

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