EarthIntroduces Earth as a planet, exploring its atmosphere, composition, and other characteristics and looking particularly at how humans learned about the blue-green ball on which we live. |
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Contents
TABLE OF CONTENTS CHAPTER ONE 4 Discovering Earth | 4 |
CHAPTER TWO 11 Earths Atmosphere | 11 |
CHAPTER THREE 15 What Earth Is Made | 15 |
Copyright | |
7 other sections not shown
Common terms and phrases
ancient Greeks areas of Earth asteroids Astronauts astronomers atmo ball call the Sun called plate carbon dioxide changes CHAPTER cloud comet continent broke Continents and islands crash craters crust of Earth Earth looks Earth spin Earth turns Earth's atmosphere Earth's axis Earth's crust Earthquake waves erosion EXPLORING EARTH formed galaxy gases glaciers melt glass roof Grand Canyon Gravity GREENHOUSE EFFECT half is tipped inside Earth Jigsaw Puzzle land areas little oxygen living things mantle Mass movement melted rock million km million miles Moon mountains North and South northern orbit the Sun ozone Pacific Ocean percent Planet in Space planets orbit plate tectonics Plates moving plates slide prehistoric rocks and soil rocky planets Scientists believe Scientists study Scientists think scientists who study seafloor slide past solar system South Poles southern half sphere stars and planets surface of Earth telescope Unmanned spacecraft volcano erupts weather on Earth winter