Rourke’s World of Science Volume 4 EARTH SCIENCE By Tim Clifford Editorial Consultant Debbie Ankiel www rourkeeducationalmedia com
TABLE OF CONTENT S What Is Earth Science 4 The Earth’s Hemispheres 7 The Origin of Our Planet 8 The Earth Today 10 The Parts of the Earth 13 The Earth’s Layers 13 Rocks 16 The Ocean 20 The Atmosphere 22 Forces That Shape the Earth 24 Plate Tectonics 25 Continental Drift 26 Volcanos 28 Earthquakes 30 Glaciers 32 Erosion 33 Human Activities 35 Weather 37 Wind 37 Clouds 38 Rain 40 Snow 41 Tornadoes 43 Hurricanes 44 The Seasons 46 Habitats 47 The Ocean 47 Lakes and Rivers 49 Swamps and Marshes 50 Deserts 51 Prairies 52 Forests 53 Mountains 55 Environmental Danger 56 Fires 56 Deforestation 57 Smog 57 Acid Rain 58 Global Warming 59 People Who Study the Earth 62
EARTH SCIENCE What Is Earth Science As far as we know Earth is the only place in the solar system that contains all the ingredients liquid water chemical building blocks and an energy source needed for life All life we know of lives on Earth It is home to plants animals and humans Everything on the planet needs everything else to survive Earth scientists help us understand and value our unique home Earth science is the study of the Earth It includes how the Earth works and its origin structure and physical features The term Earth science is a general term that includes all the sciences related to the Earth It might surprise you that sciences like meteorology and oceanography are both Earth sciences Earth Sciences Science What Is Studied Photo Glaciology Glaciers and ice Geology Solid matter including rocks and minerals E C N E I C S H T R A E S I T A H W 4
