Rocks and Minerals
geology- the study of earth materials such as rocks and
minerals
geologist- a scientist who studies rocks and minerals
rocks- made up of more than one earth ingredient
The three types of rocks are:
Igneous- rocks formed form volcanoes and earth materials
Sedimentary- rocks formed by many layers settling together
Metamorphic- rocks that change into another type of rock from heat
and pressure
minerals- made up of one earth ingredient
Diamonds are hardest mineral found from the earth.
Talc is the softest mineral found from the earth.
Properties of rocks and minerals are something you can observe, such
as size, color, shape, luster (shiny), or texture.
Geologists use rock and mineral properties to help identify and tell
them apart.
Some tools a geologist may use are nails, chisels, hammers, and a
measuring tape.
Geologists measure rocks and minerals using a measuring tape
Geologists measure rocks and minerals to determine their mass.
circumference- the distance around a circular object
diameter – the distance across a circular object
depth- is how thick an object is from top to bottom