Science

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empezar lección

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término		definición
is a skull a mineral empezar lección		no its manmade
Is quartz a mineral empezar lección		yes
what are minerals used for by humans empezar lección		zippers, pencils, makeup
is wood a mineral Eating apples is very healthy. empezar lección		no Comer manzanas es muy saludable.
what is a mineral empezar lección		1. naturally organic 2. it is inorganic 3. it is a solid 4. has a crystaling structure 5. definite chemical composition
is diamond manmade? Do you know that I like you? empezar lección		no its a mineral ¿Sabes que me gustas?
what is an ore empezar lección		mineral deposits from which metals and nonmetals can be removed from profitably
what is a metal empezar lección		1. has a shiny surface 2. mineral resource 3. good heat and light conductors 4. bend easily
what does a nonmetal have that a metal does not have empezar lección		a dull surface,
what is a native element empezar lección		metallic mineral
what exists in the earths crust empezar lección		native element
what is contact metamorphis empezar lección		when magma comes into contact with existing rock
what is a vein empezar lección		when new minerals precipitate from solution and form a narrow zone of rock
define lode empezar lección		when thick mineral veins form in a relatively small region which is the ore deposits
a deposit that contains a valuable mineral that has been concentrated by mechanical action empezar lección		this is a placer deposit
what is a gemstone empezar lección		a mineral that can be used as jewelry or an ornament when its cut and polished
what is subsurface mining empezar lección		miners use this technique to find underground mineral deposits
what is surface mining empezar lección		when the overlying rock material is stripped away to reveal the mineral deposits

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