Science
History
English
Latin
Geography
100

This consists of glands and organs that use hormones to send messages through the bloodstream to the rest of the body.

What is the endocrine system?

100

In this year, the Civil War began.

What is 1861?
100

This is the conjugation of To Set.

What is to set, set, sets, set, setting, set?

100
Latin nouns and pronouns have different endings called this. 

What are declensions?

100

This is the name of these Northern Appalachian Mountains.

What are White Mountains, Green Mountains, Adirondack Mountains and Allegheny Mountains?

200

transportation, protection, communication, regulation

What are the major purposes of blood?

200

In this year General Robert E. Lee surrendered to General Ulysses S. Grant.

What is 1865?

200

This is the conjugation of To Sit

What is to sit, sit, sits, sat, sitting, sat?

200

in principio erat Verbum

What is the Latin for "In the beginning was the Word"?
200

This is the name of these Southern Appalachian Mountains. 

What are The Great Valley, Blue Ridge Mountains, Great Smoky Mountains, Cumberland Mountains, Mount Mitchell?

300

This is the number of protons in the nucleus of an atom, which is also the number of electrons in a neutral atom.

What is the atomic number?

300

In 1868 this made all former slaves U.S. citizens and paved the way or the Civil Rights Movement.

What is the Fourteenth Amendment?

300

This is the conjugation of To Beat.

What is to beat, beat, beats, beat, beating, beaten?

300

and the Word was with God and the Word was God

What is the English for "et Verbum erat apud Deum et Deus erat Verbum"?

300

This is the name of these Western Mountains.

What are Rocky Mountains, Pikes Peak, Mt. Elbert, Sierra Nevadas, Mt. Whitney?

400

This is a basic chemical substance defined by its atomic number and atomic mass.

What is an element?

400

During the late 1800s, these tycoons fueled the nation's Industrial Age by developing American resources. 

Who are Vanderbilt, Rockefeller, Carnegie and Swift?

400

This is the conjugation of To Break.

What is to break, break, breaks, broke, breaking, broken?

400

hoc erat in principio apud Deum

What is the Latin for "the same was in the beginning with God"?

400

This is the name of these Northwest Mountains.

What are Cascade Mountains, Mt. Rainier, Mt. St. Helens, Denali?
500

nucleus, protons, electrons, quarks, leptons, neutrons

What are some parts of an atom?

500
From this year to this year, more than 37 million immigrants came to America.

What is 1820-1930?

500

This is the conjugation of To Write.

What is to write, write, writes, wrote, writing, written?

500

all things were made by him

What is the English for "omnia per ipsum facta sunt"?

500

This is the name of the 5 Great Lakes.

What are Superior, Michigan, Huron, Erie and Ontario?