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Earth Science Ch.2
Rocks and Earth's Interior
Question | Answer |
---|---|
What is the process by which rocks change from one type to another? | rock cycle |
What type of rock forms when melted rock cools or hardens on or under Earth’s surface? | igneous rock |
What does a rock change into when heat, pressure, and hot fluids are applied? | metamorphic rock |
What is formed when volcanic rock gets pushed down a stream, breaking into smaller pieces? | sedimentary rock |
What is the thin, rocky outer layer of the Earth called? | crust |
What is the densest layer of Earth, because it is made of solid iron? | inner core |
Does temperature and pressure of the material within Earth increase or decrease with depth? | increase |
What type of waves from earthquakes help scientists understand the interior layers of the Earth? | seismic |
The crust and upper part of which layer_form the lithosphere? | mantle |
The partly melted, plastic-like rock below the crust is called what? | mantle |
What in the outer core made of? | liquid iron and nickel |
What is the inner core made of? | solid iron and nickel |