a mineral that most living things need- you can find this in milk or cheese
TRANSCRIPT
ROCKS AND MINERALS
A mineral that most living things need-you can find
this in milk or cheese
Calcium
A resistance of a material or metal to scratching or
breaking
Hardness
The way the light reflects from the
surface of a mineral
Luster
A shiny, dense substance that easily conducts
heat and electricity
Metal
A natural, solid substance found in
rocks
Mineral
minerals in rock that can be
extracted and used by people to make
things
Ore
The color of a mineral in a
powered form
Streak
a type of rock that forms when melted
rock cools and hardens
Igneous Rock
one of the major types of rock that is
created from previously existing
rock by the action of intense heat and
pressure
Metamorphic Rock
a type of rock formed by gravity pressing
fragments of other rocks and minerals together as
they settle on land or under the ocean over a
long period of time
Sedimentary Rock