Barron's: The Leader in Test Preparation 7th Edition
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Unit 1 : Earth Systems and Resources
1: The Earth -Geologic Time Scale
-Herbs and grass prospered, as well as flowering plants.
-The ice age occurred during this era.
-The Rocky Mountains began building in this era.
-The Permian period showed a grater population of reptiles.
-The Carboniferous period was the age of amphibians.
-The Devonian period was the age of more fish.
-The Silurian period showed a greater invasion of invertebrates on land.
-The Ordovician period exhibited the first vertebrates.
-The Cambrian period had a lot of marine invertebrates.
-The Appalachian Mountains began building in this era.
-Crust: 0.5% of Earth's mass; divided into the basalt-rich oceanic crust and granite-rich continental crust. The crust is on top of the middle of Earth, or its mantle. It's rocky, brittle, and cold.
-Continental Crust: extends 20-30 miles down into Earth; less dense than the oceanic crust. It contains volcanic, sedimentary, granite, and metamorphic rocks.
-Oceanic Crust: thin piece of Earth's crust that lies under the ocean basins, containing basaltic rocks with sediments over it.
-Mantle: a solid layer that contains most of Earth's mass; 1,800˚F (1,000˚C); composed of iron, magnesium, aluminum, and silicon-oxygen compounds.
-Lithosphere: a solid outer layer of Earth that's "apart of the brittle upper section of the mantle and the crust." It breaks down into tectonic plates, where heat from the mantle cause it to move and slide against one another. Plate tectonics is a term used to describe the movement of tectonic plates and can cause earthquakes, and volcanoes from two plates rubbing together.
-Core: contains mostly iron with a molten outer core and cold inner core.
__________________________________________________________________________________________
Unit 1 : Earth Systems and Resources
1: The Earth -Geologic Time Scale
-Herbs and grass prospered, as well as flowering plants.
-The ice age occurred during this era.
-The Rocky Mountains began building in this era.
-The Permian period showed a grater population of reptiles.
-The Carboniferous period was the age of amphibians.
-The Devonian period was the age of more fish.
-The Silurian period showed a greater invasion of invertebrates on land.
-The Ordovician period exhibited the first vertebrates.
-The Cambrian period had a lot of marine invertebrates.
-The Appalachian Mountains began building in this era.
-Crust: 0.5% of Earth's mass; divided into the basalt-rich oceanic crust and granite-rich continental crust. The crust is on top of the middle of Earth, or its mantle. It's rocky, brittle, and cold.
-Continental Crust: extends 20-30 miles down into Earth; less dense than the oceanic crust. It contains volcanic, sedimentary, granite, and metamorphic rocks.
-Oceanic Crust: thin piece of Earth's crust that lies under the ocean basins, containing basaltic rocks with sediments over it.
-Mantle: a solid layer that contains most of Earth's mass; 1,800˚F (1,000˚C); composed of iron, magnesium, aluminum, and silicon-oxygen compounds.
-Lithosphere: a solid outer layer of Earth that's "apart of the brittle upper section of the mantle and the crust." It breaks down into tectonic plates, where heat from the mantle cause it to move and slide against one another. Plate tectonics is a term used to describe the movement of tectonic plates and can cause earthquakes, and volcanoes from two plates rubbing together.
-Core: contains mostly iron with a molten outer core and cold inner core.