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Science pace 1086
section 1 check up
| Question | Answer |
|---|---|
| Sedimentation began on the ocean floor just after the ______. | flood |
| The lithosphere covers our Earth and includes the ______ as well as the ocean floor. | continents |
| The lithosphere is the ______ layer of Earth and varies in thickness from three to forty miles. | outside |
| Earth's ______ is thinnest under the ocean and thickest at the mountains. | crust |
| The ______ is the place where the crust ends and the mantle begins. | Moho |
| A seismograph is a scientific instrument used to sense and record Earth ______. | vibrations |
| ______ vibrations tell scientists much about the mantle's make-up and thickness. | Seismic |
| The core of Earth lies just below the ______. | mantle |
| Because of the strong ______ field generated from inside Earth, the outer core is believed to be molten rock consisting of iron and nickel. | magnetic |
| Scientists believe that Earth's temperature ______ at a steady rate according to depth. | increases |
| The inner ______ is the center of Earth and is believed to have a radius of about 800 miles. | core |
| ______ rock is formed by heat. | Igneous |
| I Timothy 6:20 | Timothy, guard what God has placed in your care! Don't pay any attention to that godless and stupid talk that sounds smart but |
| ______ rock is formed when sediment is deposited in layers and hardened into rock. | Sedimentary |
| ______ rock is formed when pressure and heat change the structure of existing igneous or sedimentary rock. | Metamorphic |
| When subterranean igneous rock is heated to such a high temperature that it melts, it is called ______. | magma |
| Sometimes a dike branches into several smaller fingers of magma called ______. | veins |
| Magma can also seep sideways between rock layers to form what is called a ______. | sill |
| The passage through which magma is forced upward from a pool of magma and finally erupts on the surface is called a ______. | pipe |
| If the ______ in the bottom of the crater begins to grow, scientists know the volcano is about to erupt again. | dome |
| A common variety of igneous rock, ______, is formed when lava with volcanic gases in it cools rapidly in the atmosphere. | pumice |
| ______, which forms from lava that flows into water, cools quickly, and hardens, is a second variety of igneous rock. | Obsidian |
| Most mountains consist mainly of ______, a very dense igneous rock formed when magma cools beneath Earth's surface. | granite |
| The entire lithosphere may have a ______ of basalt. | foundation |
Created by:
darlagreen