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Chapter 2: A Living Planet

Name: _______________________________________
Date: ________________________________________
Across
a natural event, formed when magma, gases and water from the lower part of the crust or mantle collect in underground chambers and eventually erupt and pour out of cracks in the earth’s surface
the difference in elevation of a landform from the lowest point to the highest point
Swells or ridges produced by winds
A river or stream flowing into a larger river or lake
the continuous circulation of water between the atmosphere, the oceans, and the earth
spheres covered with ice and dust that leave trails of vapor as they race through space
the point on the earth’s surface that corresponds to the location in the earth where an earthquake begins.
magma that has reached the Earth’s surface
surrounds the earth and is a layer of gasses
A fracture in the earth's crust
natural processes that break rock into smaller pieces
the hypothesis that all continents were once joined into a supercontinent that split apart over millions of years
An area drained by a major river and its tributaries
made up of the water elements on the earth
middle layer of the earth, contains most of the earth’s mass
consists of the sun, eight regular planets, and other celestial bodies that orbit the sun
the chain of volcanoes that lines the Pacific Rim
occur when ground water circulates near a magma chamber.
Down
solid rock portion of the earth surface
a hot spring that occasionally erupts with steam jets and boiling water
The level at which the rock is saturated marks the rim; can rise or fall depending on the amount of precipitation in the region and on the amount of water pumped out of the ground
A giant wave in the ocean
The movement is slow, and the rocks, which are under great pressure, become more flexible and bend or fold, creating changes in the crust
a process that changes rock into a new substance through interactions among elements in the air or water and the minerals in the rock
The location in the earth where an earthquake begins
the center of the earth, made up of iron and nickel. Outer core is liquid, the inner core is solid
the earth’s surface from the edge of a continent to the deep part of the ocean
molten rock
Plates collide causing either one plate to dive under the other or the edges of both plates to crumple
uses information collected by seismographs to determine the relative strength of an earthquake.
The water held in the pores of rocks
Act like rivers flowing through the ocean
physical and chemical processes that change the characteristics of rock on or near the earth’s surface, occurring slowly over many years
the result of weathering on matter, created by the action of wind, water, ice or gravity
the thin layer of rock at the earth’s surface