Minerals, Rocks, and Soil 광물,바위,토양 관련 단어 영영풀이

[Minerals, Rocks, and Soil 광물,바위,토양 관련 단어 영영풀이]

 

drill

noun : a tool with a sharp, spinning tip that is used to make holes

rock

noun : a very hard material in nature that is made of minerals

soil

noun : the top layer of the ground in which plants grow; dirt

 

bedrock

noun : a layer of solid rock underneath the ground's surface

crystal

noun : a mineral that forms in regular, tight patterns

deposit

verb : to set down an amount of a substance, such as sediment, on a surface or area

element

noun : a substance that cannot be broken down into simpler substances and is made up of only one kind of atom

erosion

noun : the gradual wearing away of rock or soil by water, wind, or ice

fossil

noun : the remains of a plant or animal that turned to stone over time

humus

noun : the organic component of soil that is composed of plant decay

metal

noun : a material, usually hard and shiny, that lets electricity and heat move through it

mineral

noun : a solid, natural material that does not come from a living thing

ore

noun : a rock that has useful minerals or metals inside it

organic

adjective : having to do with or coming from living organisms

process

verb : to follow a set of steps in preparing something

process

verb : to change through a series of actions that may be natural or that are designed as steps to a goal

refine

verb : to remove unwanted materials from a substance

resource

noun : a supply of something valuable or very useful

subterranean

adjective : underground

weathering

noun : the process of wearing away or otherwise changing Earth's surface by exposure to natural forces

 

alloy

noun : a metal that is a combination of two or more metals

energy resource

noun : a supply of something that can be used by people to do work and to provide power

igneous rock

noun : rock formed by the hardening of hot, molten magma

metamorphic rock

noun : rock formed by exposing igneous or sedimentary rock to extreme heat and pressure

raw material

noun : a basic substance from which something else is created or made

rock cycle

noun : the series of changes that rock undergoes as it cycles between different forms

sedimentary rock

noun : rock formed when sediment is compacted

subsoil

noun : the middle layer of soil, which contains more rocks than topsoil

topsoil

noun : the top layer of soil where most plants have their roots