cir-
cent-
sub-
geo-
inter-
100

A round shape

circle

100

Another word for a penny

cent

100

To take away from something

subtract

100

The study of Earth's countries and regions

Geography

100

when a defensive football player catches the ball between the quarterback and the receiver

interception/intercept

200

The area around a circle

circumference

200

100 years

century

200

An underground train station

subway

200

The study of rocks

geology

200

when something is between multiple countries, or worldwide

international

300

To go around the Earth

circumnavigate

300

100 of these make a meter

centimeter

300

A vehicle that goes underwater

submarine

300

The study of Earth's objects using math

geometry

300

The meeting point between two roads

intersection

400

To find a way around something

circumvent

400

Somethings 100th anniversary

centennial

400

Taking the place of something else temporarily

substitute

400

The name for models of the solar system that put earth as the center

geocentric

400

The service that provides connection between different devices and websites

internet

500

A condition, fact, or event that impacts something

circumstance

500

suffix: a specific amount out of 100, like a grade on an assignment

percent

500

The area outside of the main city, usually where homes are built

suburb

500

The name for different forms of energy that use heat from the earth and convert it into power

geothermal

500

To speak in between somebody else speaking

interrupt