A system for breaking time into units and keeping track of those units.
Calendar.
A round model of the Earth.
Globe.
The chance you pass up when you make a choice.
Opportunity cost
To become a citizen through the legal process.
Naturalization
The order in which events happen.
Chronology.
A flat drawing of the Earth.
Map.
Human-made goods that people use to produce other goods.
Capital.
Due process
Who, what, where, when, why?
Five questions when analyzing sources.
Natural features on the Earth such as deserts, mountains, plains, and plateaus.
Landforms.
A person who organizes and manages a business.
Entrepreneurs
A form of government in which power is split between national and local governments.
Federal System
Diagram.
Ups and downs of the Earth's surface.
Reliefs.
A free market where you can buy and sell.
Market economy
Obeying the law, paying taxes, serving on juries, and defending the nation.
Duties of the citizen.
This presents numbers visually.
Graph.
A community of living beings and their surroundings.
Ecosystem.
An economy in which individuals own the means of production.
Free enterprise system.
Meaning that you are not obligated to perform certain duties. They are _____.
Voluntary.