History
Science
English
Geography
Math
Latin
Timeline
100
Tell me about the Korean War.
In 1950, General Douglas MacArthur led United Nations forces to stop communist North Korea from capturing all of South Korea during the Korean War.
100
What is the First Law of Thermodynamics?
The First Law of Thermodynamics states that energy cannot be created of destroyed.
100
A Gerund
A gerund is a present participle verb form used as a noun.
100
Show me/tell me: Southeastern Asia
North Korea, South Korea, Taiwan
Philippines, Guam
100
Area of a Circle
The area of a circle equals pi (3.14) times the radius squared.
100
First Conjugation Endings Perfect Tense
i, isti, it
imus, istis, erunt
100
Darwin publishes The Origin of Species
Lincoln's War between the States
Reconstruction of the Southern States
Dominion of Canada
Otto von Bismarck unifies Germany
Boer Wars in Africa
The Spanish-American War
The Progressive Era
200
Tell me about the Vietnam War.
In 1965, President Johnson sent U.S. troops to stop communist North Vietnam from capturing all of South Vietnam during the Vietnam War.
200
What is the Second Law of Thermodynamics?
Often called the law of entropy, the Second Law of Thermodynamics explains why heat flows from an area of higher temperature to an area of lower temperature.
200
An appositive
An appositive is a noun or pronoun directly beside another noun that explains or identifies it.
200
Show me/tell me: South Central Asia
Laos, Thailand, Cambodia,
North Vietnam, South Vietnam
200
Circumference of a Circle
The circumference of a circle equals two times pi (3.14) times the radius.
200
First Conjugation Endings Perfect Tense
i, isti, it
imus, istis, erunt
200
The Progressive Era...
Australia becomes a Commonwealth
Mexican Revolution
World War I and President Wilson
Lenin and the Bolshevik Revolution in Russia
U.S. Evangelist Billy Graham
Modern Period of the Arts
The Great Depression and the New Deal
300
Tell me about the end of the Cold War.
In the 1980s, British Prime Minister Margaret Thatcher and American President Ronald Reagan worked together to end the Cold War, lessen big government, and strengthen the conservative movement.
300
What is the Third Law of Thermodynamics?
The Third Law of Thermodynamics explains that it is impossible to reach the state of absolute zero temperature.
300
A conjunction
A conjunction is a word used to connect words, phrases, or clauses together.
300
Show me/tell me: Central America
Guatemala, Belize, El Salvador,
Honduras, Nicaragua
300
Associative Law
The Associative Law for addition states:
(a + b) + c = a + (b + c)
The Associative Law for multiplication states:
(a x b) x c = a x (b x c)
300
First Conjugation Endings Pluperfect Tense
eram, eras, erat
eramus, eratis, erant
300
The Great Depression and the New Deal...
World War II and President Franklin D. Roosevelt
Stalin of the USSR and the Katyn Massacre
The United Nations formed
The Cold War
Gandhi and India's Independence
Jewish State established
Mao and Communist Victory in China
400
Tell me about the fall of Communism.
In 1989, the communist dictators began to fall in Eastern Europe when Soviet General Secretary Gorbachev refused to send them military aid.
400
What are some ways light is observed?
Some ways that light is observed are:
reflection, refraction, spectrum, wave, particle
400
Coordinating Conjunctions
F for
A and
N nor
B but
O or
Y yet
S so
400
Show me/tell me: Oceania
Australia, Great Barrier Reef, New Zealand,
Papua New Guinea, Indonesia
400
Commutative Law
The Commutative Law for addition states:
a + b = b + a
The Commutative Law for multiplication states:
a x b = b x a
400
First Conjugation Endings Pluperfect Tense
eram, eras, erat
eramus, eratis, erant
400
Mao and Communist victory in China...
North Atlantic Treaty Organization (NATO)
The Korean War
Martin Luther King Jr. and the Civil Rights Movement
Jim and Elizabeth Elliott, missionaries to Ecuador
The Antarctic Treaty
The Vietnam War
U.S. astronauts walk on the moon
500
Tell me about the Gulf War.
In 1990, President George H.W. Bush sent troops to the Persian Gulf to expel Iraqi leader Saddam Hussein from Kuwait during the Gulf War.
500
How does heat flow?
Heat flows by:
radiation, conduction, convection
500
An Adjective
An adjective modifies a noun or pronoun by describing, qualifying, or limiting-and answers the questions: What kind? How many? Which? Whose?
500
Show me/tell me: Central Asia
Kazakhstan, Uzbekistan, Turkmenistan,
Tajikistan, Kyrgyzstan
500
Distributive Law
The Distributive Law states:
a x (b + c) = a x b + a x c
500
First Conjugation Endings Future Perfect Tense
ero, eris, erit
erimus, eritis, erint
500
U.S. astronauts walk on the moon...
Age of Information and Globalization (Circa 1970 to the present)
Watergate, President Nixon resigns
The fall of Communism in Eastern Europe
European Union formed
Apartheid abolished in South Africa
2000 A.D. September 11, 2001
Rising Tide of Freedom
600
Tell me about the end of apartheid.
In 1994, South African President de Klerk allowed free elections. Nelson Mandela became South Africa's first black president, demonstrating apartheid was ending.
600
What units are used to measure electricity?
ohms measure resistance
volts measure voltage
amps measure current
watts measure power
600
An Interjection
An interjection is a word or phrase used as a strong expression of feeling or emotion.
600
Show me/tell me: Southern Africa
South Africa, Lesotho, Botswana,
Mozambique, Namibia
600
Identity Law
The Identity Law for addition states:
a + 0 = a
The Identity Law for multiplication states:
a x 1 = a
600
First Conjugation Endings Future Perfect Tense
ero, eris, erit
erimus, eritis, erint
600
The U.S. Presidents...
Washington, Adams, Jefferson, Madison, Monroe, Adams, Jackson, Van Buren, Harrison, Tyler, Polk, Taylor, Filmore, Pierce, Buchanan, Lincoln, Johnson, Grant, Hayes, Garfield, Arthur, Cleveland, Harrison, Cleveland, McKinley, Roosevelt, Taft, Wilson, Harding, Coolidge, Hoover, Roosevelt, Truman, Eisenhower, Kennedy, Johnson, Nixon, Ford, Carter, Reagan, Bush, Clinton, Bush, Obama, Trump