Location
An isoline is used on maps to represent points of equal value. The isoline for air pressure is an isobar.
Electron dot diagrams are used to represent electron sharing and can easily show how elements bond. The dots represent valence electrons and makes it easier to show students.
Solids that are amorphous. Of which perhaps glass is the best known example. [But glass is not a mineral] Materials such as TiO2 are amorphous solids.
Three_letter symbols represent elements with temporary name
The Meridian Arrow Points North To Show Correct Plot Orientation.
Location
Children
Picture Show
Rowan
On Air
Hawk
Green
Outer Space
Keeping Up for oodles
Planeteers
Ben Stein's
man