Science Final

__ rocks are formed as extreme heat and pressure changes the chemical composition and/or texture of the rocks.

Changes in the __ field of the earth support the theoretical ideas related to the earth's layers and continental drift.

Temperature __ as you move downward from the crust toward the center of the earth

__ is the process by which rock is broken down into small particles (sediments) by the action of water, wind, and ice.

The inner __ is the hottest and densest layer of the earth. It consists of solid iron and nickel.

__ rock is formed as small particles are compressed together by the weight of other particles piled on top of them

__ are particles that are cemented together under pressure so that they form rock

__- water consists of water that has been pulled downward by gravity through pores or spaces between particles or rocks until it collects above an impermeable layer of rock.

__ rock is formed as magma cools and becomes solid, either on (extrusive) or below (intrusive) the surface of the earth.

Capillary action brings water back __ through small pores between soil particles after it has been pulled down by gravity.

__ is the rock that forms the ocean floor

__ includes rain, sleet, and hailstones.

At a __ zone, a denser oceanic plate (sea floor) moves down under a continental plate.

Granite, which makes up the continental plates, has a __ density than basalt, which makes up the oceanic plates.

The __ is the layer of the earth on which we live. It is made up mostly of sedimentary, igneous, and metamorphic rocks.

Tectonic __ float and move on the molten upper part of the mantle according to recent theories.

__ is the process by which particles or sediments are moved to other locations.

According to the theory of plate tectonics, mountains may be formed when continents __.

__ the rock which makes up the mantle; it is the material from which all of the types of rock are formed.

The __ core of the earth is formed from molten or plastic iron and nickel since it is very hot and not under enough pressure to solidify it.

Pressure __ as you move downward toward the center of the earth.

__ is impermeable since it consists of particles that are smaller than sand particles and are tightly packed together with little space in between them.

__ soil or rock allows water to move through it or collect in it since there are space between the particles or rocks.

__ is the process by which water vapor changes into liquid water; it is important in cloud formation.

__ tectonic plates are made of basalt; they are denser than the continental plates

the __ is the upper part of the mantle that the tectonic plates float in; it is molten (plastic)

the parts of continents that fir together like pieces of a puzzle have similar __ deposits

__ currents occur in the mantle as pockets of hot, less dense magma rise to the aesthenosphere and move apart as they reach the crust.

__ is the process by which liquid water changes into water vapor (gas) at temperatures lower than the boiling point.

the theory of continental drift was devised by Alfred Wegner when he noticed that the continents of South America and Africa fit together like pieces of a __ when they are moved next to each other.

the theory of __ drift was not widely accepted until the theory of plate tectonics provided a mechanism for the movement.

an __ is an area of porous (permeable) rock that can store large amounts of water. The water is kept from moving downward y an impermeable layer of rock beneath it.

heat produced by radioactive __ of elements deep inside of the earth is probably one of the main reasons for the increase in temperature as you move downward beneath the surface.

the __ is the largest layer of the earth; it makes up about eighty percent of the volume of the earth.

the __ is the fairly thin layer. it varies from six to forty seven miles thick under the continents and is about three to five miles thick under the oceans

when the parts of continents that fit together almost like pieces of a puzzle were investigated; scienctists found that they had similar __s

the distinct layers of the earth become __ as we move from the crust to the inner core.

tectonic plates sometimes __ as they slide past each other building up