science earths layers Flashcards
Earths mantle
Most of the mantle is made up of rock and flows very slowly. It is the second layer of the earth.
Earths crust
The crust is the thin outer layer of earth.
Earths core
The innermost region of earth is the core. The outer core is a liquid. The inner core is a solid.
Density
Amount of matter in a given volume.
Magnetism
Force of attraction or repulsion associated with magnets
Acid test
A test that helps identify minerals containing calcium.
Crystal
Solid substance with atoms arranged in a regular three dimension pattern.
Cleavage
Tendency of some minerals to split along smooth,flat surfaces called planes.
Fracture
Tendency of some minerals to break into pieces with uneven surfaces.
Crystallization
Formation of crystals caused by process such as evaporation.
Evaporation
The process by which liquid changes into a gas.
Solution
Mixture in which the particles of one substance are evenly mixed with the particles of another substance.
Precipitation
Process that occurs when elements and compounds leave a solution and crystallize out as solids
Physical property
Observable characteristics that describe an object
Streak
Color of powder left by a mineral
