CK-12 Earth Science For Middle School - download pdf or read online

By CK-12 Foundation

CK-12 Foundation's Earth technology for center institution FlexBook covers the subsequent chapters: what's Earth Science?-scientific strategy, branches of Earth Science.Studying Earth's Surface-landforms, map projections, computers/satellites.Earth's Minerals-formation, use, identification.Rocks-rock cycle, igneous, sedimentary, metamorphic.Earth's Energy-available nonrenewable/renewable resources.Plate Tectonics- Earth's inside, continental flow, seafloor spreading, plate tectonics.Earthquakes-causes/prediction, seismic waves, tsunami.Volcanoes-formation, magma, eruptions, landforms.Weathering and Formation of Soil-soil horizons, weather similar soils.Erosion and Deposition-water, wind, gravity.Evidence approximately Earth's Past-fossilization, relative age dating/absolute age dating.Earth’s History-geologic time scale, improvement, evolution of life.Earth's clean Water-water cycle, forms of clean water.Earth's Oceans-formation, composition, waves, tides, seafloor, ocean life.Earth's Atmosphere-properties, value, layers, strength move, air movement.Weather-factors, cloud forms, air lots, storms, climate forecasting.Climate-Earth's floor, international climates, causes/impacts of change.Ecosystems and Human Populations-ecosystems, matter/energy circulate, carbon cycle, human inhabitants growth.Human activities and the Land-soil erosion, harmful materials.Human activities and Earth's Resources-renewable/nonrenewable assets, availability/conservation.MS Human activities and Earth's Water-use, distribution, pollutants, protection.Human activities and the Atmosphere-air pollutants, reasons, results, reduction.Observing and Exploring Space-electromagnetic radiation, telescopes, exploration.Earth, Moon, and Sun-properties/motions, tides/eclipses, sunlight activity.The sunlight System-planets, formation, dwarf planets, meteors, asteroids, comets.Stars, Galaxies, and the Universe-constellations, light/energy, type, evolution, groupings, galaxies, darkish topic, darkish power, the large Bang Theory.Earth technology thesaurus.

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The universe also contains black holes, other galaxies, asteroids, comets, and nebula. As big as Earth seems, the entire universe is vastly more enormous. Earth is just a tiny part of our universe. Astronomers use many tools to study things in space. Earth-orbiting telescopes view stars and galaxies from the darkness of space (Figure below) They may have optical and radio telescopes to see things that the human eye can't see. Spacecraft travel great distances to send back information on faraway places.

Why do nautical charts have two compass roses on them? Think Critically 6. Why do you think that the ocean basins are younger than the continents? 7. Explain what landforms on the continents are created by erosion from wind and water. How does erosion create a landform? Points to Consider A new volcano rises in Mexico. How you would describe its position in a scientific report? Can you devise a system to show low areas and high areas on a map? Why do you think continents are higher areas on Earth than the ocean basins?

Landmasses or countries outside that zone get stretched out of shape. The further the feature is from the equator, the more out of shape it is stretched. For example, if you look at Greenland on a globe, you see it is a relatively small country near the North Pole. Yet, on a Mercator projection, Greenland looks almost as big the United States. Because Greenland is closer to the pole, the continent's shape and size are greatly increased. The United States is closer to its true dimensions. In a Mercator projection, all compass directions are straight lines.

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