Science
This tiny, basic building block makes up all matter in the universe.
What is an atom?
These are the fundamental rights of citizens to political and social freedom and equality, regardless of race, gender, or religion.
What are civil rights?
You get this type of substance when two or more different types of elements are chemically joined together.
What is a compound?
This 19th-century belief held that it was the "God-given right" and duty of the United States to expand its borders all the way to the Pacific Ocean.
What is Manifest Destiny?
This iconic chart organizes all known chemical elements by their atomic structures and properties.
What is the Periodic Table?
Marked by widespread unemployment and bank failures in the 1930s, this was the most severe economic crash in U.S. history.
What is the Great Depression?
Ranging from 0 to 14, this scale measures how acidic or basic a liquid substance is.
What is pH?
Occurring right after the Civil War from 1865 to 1877, this era was focused on rebuilding the South and readmitting Confederate states to the Union.
What is Reconstruction?
This pure substance is made of only one type of atom and cannot be broken down into anything simpler.
What is an element?
This early 1900s movement aimed to fix societal problems created by rapid growth, targeting corrupt politics, child labor, and unsafe working conditions.
What is Progressivism?
This force of attraction holds atoms together so they can form brand-new substances.
What is a chemical bond?
This fundamental term refers to the legal right to vote in political elections.
What is suffrage?
This law states that matter cannot be created or destroyed, meaning total mass stays equal before and after a reaction.
What is the Law of Conservation of Mass?
To help the nation recover from the Great Depression, President Franklin D. Roosevelt launched this series of government programs, public works projects, and financial reforms.
What is the New Deal?
Water (H2O) is a famous example of this group of two or more atoms stuck together by chemical bonds.
What is a molecule?
Often described as "minding our own business," this foreign policy strategy advocates staying out of the political affairs, alliances, or wars of other nations.
What is isolationism?
During this process, starting substances rearrange their atoms to transform into completely new substances.
What is a chemical reaction?
This is the period of economic transformation when a nation shifts from an agricultural foundation to one based on factories and manufacturing.
What is industrialization?
This term describes an atom or molecule that carries an electrical charge because it gained or lost electrons.
What is an ion?
When a powerful nation takes control of or exerts influence over weaker countries to gain power, territory, or resources, it is practicing this policy.
What is imperialism?